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| author | William Dean <williamsukatube@gmail.com> | 2022-07-22 05:57:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-21 16:15:23 +0300 |
| commit | fc3918d70bbe65c8b92c9dc9d742c4559ccd2dbe (patch) | |
| tree | f017b9df41bb3dcd624be15a6cac06d5e2f2e8c7 /drivers/parisc | |
| parent | b0dfba6d3bf2fa78bd7c62cae61496279f62ced2 (diff) | |
| download | linux-fc3918d70bbe65c8b92c9dc9d742c4559ccd2dbe.tar.xz | |
parisc: Check the return value of ioremap() in lba_driver_probe()
commit cf59f34d7f978d14d6520fd80a78a5ad5cb8abf8 upstream.
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+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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); |