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);