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| author | Shuah Khan <skhan@linuxfoundation.org> | 2022-07-01 10:53:52 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-07-02 16:20:56 +0200 |
| commit | 2cd37c2e72449a7add6da1183d20a6247d6db111 (patch) | |
| tree | 00e28f259651de2fadd147fb54c4d6fd53a5b16f | |
| parent | 3776c78559853fd151be7c41e369fd076fb679d5 (diff) | |
| download | lwn-2cd37c2e72449a7add6da1183d20a6247d6db111.tar.gz lwn-2cd37c2e72449a7add6da1183d20a6247d6db111.zip | |
misc: rtsx_usb: set return value in rsp_buf alloc err path
Set return value in rsp_buf alloc error path before going to
error handling.
drivers/misc/cardreader/rtsx_usb.c:639:6: warning: variable 'ret' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
if (!ucr->rsp_buf)
^~~~~~~~~~~~~
drivers/misc/cardreader/rtsx_usb.c:678:9: note: uninitialized use occurs here
return ret;
^~~
drivers/misc/cardreader/rtsx_usb.c:639:2: note: remove the 'if' if its condition is always false
if (!ucr->rsp_buf)
^~~~~~~~~~~~~~~~~~
drivers/misc/cardreader/rtsx_usb.c:622:9: note: initialize the variable 'ret' to silence this warning
int ret;
^
= 0
Fixes: 3776c7855985 ("misc: rtsx_usb: use separate command and response buffers")
Reported-by: kernel test robot <lkp@intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220701165352.15687-1-skhan@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/misc/cardreader/rtsx_usb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/misc/cardreader/rtsx_usb.c b/drivers/misc/cardreader/rtsx_usb.c index 4e2108052509..f150d8769f19 100644 --- a/drivers/misc/cardreader/rtsx_usb.c +++ b/drivers/misc/cardreader/rtsx_usb.c @@ -636,8 +636,10 @@ static int rtsx_usb_probe(struct usb_interface *intf, return -ENOMEM; ucr->rsp_buf = kmalloc(IOBUF_SIZE, GFP_KERNEL); - if (!ucr->rsp_buf) + if (!ucr->rsp_buf) { + ret = -ENOMEM; goto out_free_cmd_buf; + } usb_set_intfdata(intf, ucr); |