This is a note to let you know that I've just added the patch titled
parisc: Check the return value of ioremap() in lba_driver_probe()
to the 5.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
parisc-check-the-return-value-of-ioremap-in-lba_driv.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9a81465effab09f20d63b68e363001be45ebe2c4
Author: William Dean <williamsukatube@xxxxxxxxx>
Date: Fri Jul 22 10:57:09 2022 +0800
parisc: Check the return value of ioremap() in lba_driver_probe()
[ Upstream commit cf59f34d7f978d14d6520fd80a78a5ad5cb8abf8 ]
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@xxxxxxxxxxx>
Signed-off-by: William Dean <williamsukatube@xxxxxxxxx>
Signed-off-by: Helge Deller <deller@xxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v5.6+
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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);
