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-rw-r--r--drivers/mfd/aat2870-core.c13
-rw-r--r--drivers/mfd/ab3100-core.c45
-rw-r--r--drivers/mfd/ab3100-otp.c21
-rw-r--r--drivers/mfd/ab8500-debugfs.c324
-rw-r--r--drivers/mfd/altera-sysmgr.c14
5 files changed, 115 insertions, 302 deletions
diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
index 9f58cb2d3789..78ee4b28fca2 100644
--- a/drivers/mfd/aat2870-core.c
+++ b/drivers/mfd/aat2870-core.c
@@ -321,18 +321,9 @@ static const struct file_operations aat2870_reg_fops = {
static void aat2870_init_debugfs(struct aat2870_data *aat2870)
{
aat2870->dentry_root = debugfs_create_dir("aat2870", NULL);
- if (!aat2870->dentry_root) {
- dev_warn(aat2870->dev,
- "Failed to create debugfs root directory\n");
- return;
- }
- aat2870->dentry_reg = debugfs_create_file("regs", 0644,
- aat2870->dentry_root,
- aat2870, &aat2870_reg_fops);
- if (!aat2870->dentry_reg)
- dev_warn(aat2870->dev,
- "Failed to create debugfs register file\n");
+ debugfs_create_file("regs", 0644, aat2870->dentry_root, aat2870,
+ &aat2870_reg_fops);
}
#else
diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c
index e350ab64238e..9f3dbc31d3e9 100644
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -575,58 +575,27 @@ static const struct file_operations ab3100_get_set_reg_fops = {
.llseek = noop_llseek,
};
-static struct dentry *ab3100_dir;
-static struct dentry *ab3100_reg_file;
static struct ab3100_get_set_reg_priv ab3100_get_priv;
-static struct dentry *ab3100_get_reg_file;
static struct ab3100_get_set_reg_priv ab3100_set_priv;
-static struct dentry *ab3100_set_reg_file;
static void ab3100_setup_debugfs(struct ab3100 *ab3100)
{
- int err;
+ struct dentry *ab3100_dir;
ab3100_dir = debugfs_create_dir("ab3100", NULL);
- if (!ab3100_dir)
- goto exit_no_debugfs;
- ab3100_reg_file = debugfs_create_file("registers",
- S_IRUGO, ab3100_dir, ab3100,
- &ab3100_registers_fops);
- if (!ab3100_reg_file) {
- err = -ENOMEM;
- goto exit_destroy_dir;
- }
+ debugfs_create_file("registers", S_IRUGO, ab3100_dir, ab3100,
+ &ab3100_registers_fops);
ab3100_get_priv.ab3100 = ab3100;
ab3100_get_priv.mode = false;
- ab3100_get_reg_file = debugfs_create_file("get_reg",
- S_IWUSR, ab3100_dir, &ab3100_get_priv,
- &ab3100_get_set_reg_fops);
- if (!ab3100_get_reg_file) {
- err = -ENOMEM;
- goto exit_destroy_reg;
- }
+ debugfs_create_file("get_reg", S_IWUSR, ab3100_dir, &ab3100_get_priv,
+ &ab3100_get_set_reg_fops);
ab3100_set_priv.ab3100 = ab3100;
ab3100_set_priv.mode = true;
- ab3100_set_reg_file = debugfs_create_file("set_reg",
- S_IWUSR, ab3100_dir, &ab3100_set_priv,
- &ab3100_get_set_reg_fops);
- if (!ab3100_set_reg_file) {
- err = -ENOMEM;
- goto exit_destroy_get_reg;
- }
- return;
-
- exit_destroy_get_reg:
- debugfs_remove(ab3100_get_reg_file);
- exit_destroy_reg:
- debugfs_remove(ab3100_reg_file);
- exit_destroy_dir:
- debugfs_remove(ab3100_dir);
- exit_no_debugfs:
- return;
+ debugfs_create_file("set_reg", S_IWUSR, ab3100_dir, &ab3100_set_priv,
+ &ab3100_get_set_reg_fops);
}
#else
static inline void ab3100_setup_debugfs(struct ab3100 *ab3100)
diff --git a/drivers/mfd/ab3100-otp.c b/drivers/mfd/ab3100-otp.c
index b3f8d359f409..c4751fb9bc22 100644
--- a/drivers/mfd/ab3100-otp.c
+++ b/drivers/mfd/ab3100-otp.c
@@ -122,17 +122,11 @@ static const struct file_operations ab3100_otp_operations = {
.release = single_release,
};
-static int __init ab3100_otp_init_debugfs(struct device *dev,
- struct ab3100_otp *otp)
+static void __init ab3100_otp_init_debugfs(struct device *dev,
+ struct ab3100_otp *otp)
{
otp->debugfs = debugfs_create_file("ab3100_otp", S_IFREG | S_IRUGO,
- NULL, otp,
- &ab3100_otp_operations);
- if (!otp->debugfs) {
- dev_err(dev, "AB3100 debugfs OTP file registration failed!\n");
- return -ENOENT;
- }
- return 0;
+ NULL, otp, &ab3100_otp_operations);
}
static void __exit ab3100_otp_exit_debugfs(struct ab3100_otp *otp)
@@ -141,10 +135,9 @@ static void __exit ab3100_otp_exit_debugfs(struct ab3100_otp *otp)
}
#else
/* Compile this out if debugfs not selected */
-static inline int __init ab3100_otp_init_debugfs(struct device *dev,
- struct ab3100_otp *otp)
+static inline void __init ab3100_otp_init_debugfs(struct device *dev,
+ struct ab3100_otp *otp)
{
- return 0;
}
static inline void __exit ab3100_otp_exit_debugfs(struct ab3100_otp *otp)
@@ -211,9 +204,7 @@ static int __init ab3100_otp_probe(struct platform_device *pdev)
}
/* debugfs entries */
- err = ab3100_otp_init_debugfs(&pdev->dev, otp);
- if (err)
- goto err;
+ ab3100_otp_init_debugfs(&pdev->dev, otp);
return 0;
diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
index d24c6ecccb88..567a34b073dd 100644
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@ -2644,12 +2644,10 @@ static const struct file_operations ab8500_hwreg_fops = {
.owner = THIS_MODULE,
};
-static struct dentry *ab8500_dir;
-static struct dentry *ab8500_gpadc_dir;
-
static int ab8500_debug_probe(struct platform_device *plf)
{
- struct dentry *file;
+ struct dentry *ab8500_dir;
+ struct dentry *ab8500_gpadc_dir;
struct ab8500 *ab8500;
struct resource *res;
@@ -2694,47 +2692,22 @@ static int ab8500_debug_probe(struct platform_device *plf)
}
ab8500_dir = debugfs_create_dir(AB8500_NAME_STRING, NULL);
- if (!ab8500_dir)
- goto err;
ab8500_gpadc_dir = debugfs_create_dir(AB8500_ADC_NAME_STRING,
ab8500_dir);
- if (!ab8500_gpadc_dir)
- goto err;
-
- file = debugfs_create_file("all-bank-registers", S_IRUGO, ab8500_dir,
- &plf->dev, &ab8500_bank_registers_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("all-banks", S_IRUGO, ab8500_dir,
- &plf->dev, &ab8500_all_banks_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("register-bank",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_dir, &plf->dev, &ab8500_bank_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("register-address",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_dir, &plf->dev, &ab8500_address_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("register-value",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_dir, &plf->dev, &ab8500_val_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("irq-subscribe",
- (S_IRUGO | S_IWUSR | S_IWGRP), ab8500_dir,
- &plf->dev, &ab8500_subscribe_fops);
- if (!file)
- goto err;
+
+ debugfs_create_file("all-bank-registers", S_IRUGO, ab8500_dir,
+ &plf->dev, &ab8500_bank_registers_fops);
+ debugfs_create_file("all-banks", S_IRUGO, ab8500_dir,
+ &plf->dev, &ab8500_all_banks_fops);
+ debugfs_create_file("register-bank", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_dir, &plf->dev, &ab8500_bank_fops);
+ debugfs_create_file("register-address", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_dir, &plf->dev, &ab8500_address_fops);
+ debugfs_create_file("register-value", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_dir, &plf->dev, &ab8500_val_fops);
+ debugfs_create_file("irq-subscribe", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_dir, &plf->dev, &ab8500_subscribe_fops);
if (is_ab8500(ab8500)) {
debug_ranges = ab8500_debug_ranges;
@@ -2750,194 +2723,93 @@ static int ab8500_debug_probe(struct platform_device *plf)
num_interrupt_lines = AB8540_NR_IRQS;
}
- file = debugfs_create_file("interrupts", (S_IRUGO), ab8500_dir,
- &plf->dev, &ab8500_interrupts_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("irq-unsubscribe",
- (S_IRUGO | S_IWUSR | S_IWGRP), ab8500_dir,
- &plf->dev, &ab8500_unsubscribe_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("hwreg", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_dir, &plf->dev, &ab8500_hwreg_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("all-modem-registers",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_dir, &plf->dev, &ab8500_modem_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("bat_ctrl", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_bat_ctrl_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("btemp_ball", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir,
- &plf->dev, &ab8500_gpadc_btemp_ball_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("main_charger_v",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_main_charger_v_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("acc_detect1",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_acc_detect1_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("acc_detect2",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_acc_detect2_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("adc_aux1", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_aux1_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("adc_aux2", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_aux2_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("main_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_main_bat_v_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("vbus_v", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_vbus_v_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("main_charger_c",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_main_charger_c_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("usb_charger_c",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir,
- &plf->dev, &ab8500_gpadc_usb_charger_c_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("bk_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_bk_bat_v_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("die_temp", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_die_temp_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("usb_id", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_usb_id_fops);
- if (!file)
- goto err;
-
+ debugfs_create_file("interrupts", (S_IRUGO), ab8500_dir, &plf->dev,
+ &ab8500_interrupts_fops);
+ debugfs_create_file("irq-unsubscribe", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_dir, &plf->dev, &ab8500_unsubscribe_fops);
+ debugfs_create_file("hwreg", (S_IRUGO | S_IWUSR | S_IWGRP), ab8500_dir,
+ &plf->dev, &ab8500_hwreg_fops);
+ debugfs_create_file("all-modem-registers", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_dir, &plf->dev, &ab8500_modem_fops);
+ debugfs_create_file("bat_ctrl", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_bat_ctrl_fops);
+ debugfs_create_file("btemp_ball", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_btemp_ball_fops);
+ debugfs_create_file("main_charger_v", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_main_charger_v_fops);
+ debugfs_create_file("acc_detect1", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_acc_detect1_fops);
+ debugfs_create_file("acc_detect2", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_acc_detect2_fops);
+ debugfs_create_file("adc_aux1", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_aux1_fops);
+ debugfs_create_file("adc_aux2", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_aux2_fops);
+ debugfs_create_file("main_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_main_bat_v_fops);
+ debugfs_create_file("vbus_v", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_vbus_v_fops);
+ debugfs_create_file("main_charger_c", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_main_charger_c_fops);
+ debugfs_create_file("usb_charger_c", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_usb_charger_c_fops);
+ debugfs_create_file("bk_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_bk_bat_v_fops);
+ debugfs_create_file("die_temp", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_die_temp_fops);
+ debugfs_create_file("usb_id", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_usb_id_fops);
if (is_ab8540(ab8500)) {
- file = debugfs_create_file("xtal_temp",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8540_gpadc_xtal_temp_fops);
- if (!file)
- goto err;
- file = debugfs_create_file("vbattruemeas",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8540_gpadc_vbat_true_meas_fops);
- if (!file)
- goto err;
- file = debugfs_create_file("batctrl_and_ibat",
- (S_IRUGO | S_IWUGO),
- ab8500_gpadc_dir,
- &plf->dev,
- &ab8540_gpadc_bat_ctrl_and_ibat_fops);
- if (!file)
- goto err;
- file = debugfs_create_file("vbatmeas_and_ibat",
- (S_IRUGO | S_IWUGO),
- ab8500_gpadc_dir, &plf->dev,
- &ab8540_gpadc_vbat_meas_and_ibat_fops);
- if (!file)
- goto err;
- file = debugfs_create_file("vbattruemeas_and_ibat",
- (S_IRUGO | S_IWUGO),
- ab8500_gpadc_dir,
- &plf->dev,
- &ab8540_gpadc_vbat_true_meas_and_ibat_fops);
- if (!file)
- goto err;
- file = debugfs_create_file("battemp_and_ibat",
- (S_IRUGO | S_IWUGO),
- ab8500_gpadc_dir,
- &plf->dev, &ab8540_gpadc_bat_temp_and_ibat_fops);
- if (!file)
- goto err;
- file = debugfs_create_file("otp_calib",
- (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir,
- &plf->dev, &ab8540_gpadc_otp_calib_fops);
- if (!file)
- goto err;
+ debugfs_create_file("xtal_temp", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8540_gpadc_xtal_temp_fops);
+ debugfs_create_file("vbattruemeas", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8540_gpadc_vbat_true_meas_fops);
+ debugfs_create_file("batctrl_and_ibat", (S_IRUGO | S_IWUGO),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8540_gpadc_bat_ctrl_and_ibat_fops);
+ debugfs_create_file("vbatmeas_and_ibat", (S_IRUGO | S_IWUGO),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8540_gpadc_vbat_meas_and_ibat_fops);
+ debugfs_create_file("vbattruemeas_and_ibat", (S_IRUGO | S_IWUGO),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8540_gpadc_vbat_true_meas_and_ibat_fops);
+ debugfs_create_file("battemp_and_ibat", (S_IRUGO | S_IWUGO),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8540_gpadc_bat_temp_and_ibat_fops);
+ debugfs_create_file("otp_calib", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8540_gpadc_otp_calib_fops);
}
- file = debugfs_create_file("avg_sample", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_avg_sample_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("trig_edge", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_trig_edge_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("trig_timer", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_trig_timer_fops);
- if (!file)
- goto err;
-
- file = debugfs_create_file("conv_type", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_gpadc_dir, &plf->dev,
- &ab8500_gpadc_conv_type_fops);
- if (!file)
- goto err;
+ debugfs_create_file("avg_sample", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_avg_sample_fops);
+ debugfs_create_file("trig_edge", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_trig_edge_fops);
+ debugfs_create_file("trig_timer", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_trig_timer_fops);
+ debugfs_create_file("conv_type", (S_IRUGO | S_IWUSR | S_IWGRP),
+ ab8500_gpadc_dir, &plf->dev,
+ &ab8500_gpadc_conv_type_fops);
return 0;
-
-err:
- debugfs_remove_recursive(ab8500_dir);
- dev_err(&plf->dev, "failed to create debugfs entries.\n");
-
- return -ENOMEM;
}
static struct platform_driver ab8500_debug_driver = {
diff --git a/drivers/mfd/altera-sysmgr.c b/drivers/mfd/altera-sysmgr.c
index 2ee14d8a6d31..d2a13a547a3c 100644
--- a/drivers/mfd/altera-sysmgr.c
+++ b/drivers/mfd/altera-sysmgr.c
@@ -88,16 +88,6 @@ static struct regmap_config altr_sysmgr_regmap_cfg = {
};
/**
- * sysmgr_match_phandle
- * Matching function used by driver_find_device().
- * Return: True if match is found, otherwise false.
- */
-static int sysmgr_match_phandle(struct device *dev, const void *data)
-{
- return dev->of_node == (const struct device_node *)data;
-}
-
-/**
* altr_sysmgr_regmap_lookup_by_phandle
* Find the sysmgr previous configured in probe() and return regmap property.
* Return: regmap if found or error if not found.
@@ -117,8 +107,8 @@ struct regmap *altr_sysmgr_regmap_lookup_by_phandle(struct device_node *np,
if (!sysmgr_np)
return ERR_PTR(-ENODEV);
- dev = driver_find_device(&altr_sysmgr_driver.driver, NULL,
- (void *)sysmgr_np, sysmgr_match_phandle);
+ dev = driver_find_device_by_of_node(&altr_sysmgr_driver.driver,
+ (void *)sysmgr_np);
of_node_put(sysmgr_np);
if (!dev)
return ERR_PTR(-EPROBE_DEFER);