From: William Dean williamsukatube@gmail.com
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 --- drivers/parisc/lba_pci.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -1476,9 +1476,13 @@ lba_driver_probe(struct parisc_device *d 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);