* [PATCH] scsi: hpsa: add return value check for remap_pci_mem()
@ 2026-01-25 15:02 Haoxiang Li
2026-01-26 12:53 ` Markus Elfring
0 siblings, 1 reply; 2+ messages in thread
From: Haoxiang Li @ 2026-01-25 15:02 UTC (permalink / raw)
To: don.brace, James.Bottomley, martin.petersen
Cc: storagedev, linux-scsi, linux-kernel, Haoxiang Li
In hpsa_enter_performant_mode(), add return value check
for remap_pci_mem() to prevent potential null pointer
dereference.
Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
---
drivers/scsi/hpsa.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 3654b12c5d5a..f3118695f320 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -9323,6 +9323,8 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support)
cfg_offset + bft2_offset,
ARRAY_SIZE(bft2) *
sizeof(*h->ioaccel2_bft2_regs));
+ if (!h->ioaccel2_bft2_regs)
+ return -ENODEV;
for (i = 0; i < ARRAY_SIZE(bft2); i++)
writel(bft2[i], &h->ioaccel2_bft2_regs[i]);
}
--
2.25.1
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2026-01-25 15:02 [PATCH] scsi: hpsa: add return value check for remap_pci_mem() Haoxiang Li
2026-01-26 12:53 ` Markus Elfring
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