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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: 4bdc0d676a ("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+
This commit is contained in:
William Dean 2022-07-22 10:57:09 +08:00 committed by Helge Deller
parent 3fbc9a7de0
commit cf59f34d7f
1 changed files with 5 additions and 1 deletions
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6
drivers/parisc/lba_pci.c
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@ -1476,9 +1476,13 @@ lba_driver_probe(struct parisc_device *dev)
u32 func_class; u32 func_class;
void *tmp_obj; void *tmp_obj;
char *version; char *version;
void __iomem *addr = ioremap(dev->hpa.start, 4096); void __iomem *addr;
int max; int max;
addr = ioremap(dev->hpa.start, 4096);
if (addr == NULL)
return -ENOMEM;
/* Read HW Rev First */ /* Read HW Rev First */
func_class = READ_REG32(addr + LBA_FCLASS); func_class = READ_REG32(addr + LBA_FCLASS);