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| author | William Dean <williamsukatube@gmail.com> | 2022-07-22 10:57:09 +0800 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2022-08-01 18:43:23 +0200 |
| commit | cf59f34d7f978d14d6520fd80a78a5ad5cb8abf8 (patch) | |
| tree | 03101c59a6ec89fb21d8c065ec0380308522ca97 /drivers/parisc | |
| parent | 3fbc9a7de0564c55d8a9584c9cd2c9dfe6bd6d43 (diff) | |
| download | lwn-cf59f34d7f978d14d6520fd80a78a5ad5cb8abf8.tar.gz lwn-cf59f34d7f978d14d6520fd80a78a5ad5cb8abf8.zip | |
parisc: Check the return value of ioremap() in lba_driver_probe()
The function ioremap() in lba_driver_probe() can fail, so
its return value should be checked.
Fixes: 4bdc0d676a643 ("remove ioremap_nocache and devm_ioremap_nocache")
Reported-by: Hacash Robot <hacashRobot@santino.com>
Signed-off-by: William Dean <williamsukatube@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v5.6+
Diffstat (limited to 'drivers/parisc')
| -rw-r--r-- | drivers/parisc/lba_pci.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c index 732b516c7bf8..afc6e66ddc31 100644 --- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -1476,9 +1476,13 @@ lba_driver_probe(struct parisc_device *dev) u32 func_class; void *tmp_obj; char *version; - void __iomem *addr = ioremap(dev->hpa.start, 4096); + void __iomem *addr; int max; + addr = ioremap(dev->hpa.start, 4096); + if (addr == NULL) + return -ENOMEM; + /* Read HW Rev First */ func_class = READ_REG32(addr + LBA_FCLASS); |