From: Li Zhong <floridsleeves@gmail.com>
To: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org
Cc: damien.lemoal@opensource.wdc.com, Li Zhong <floridsleeves@gmail.com>
Subject: [PATCH v2] ata: libata-core: Check errors in sata_print_link_status()
Date: Sat, 3 Sep 2022 16:10:39 -0700 [thread overview]
Message-ID: <20220903231039.2278817-1-floridsleeves@gmail.com> (raw)
sata_scr_read() could return negative error code on failure. Check the
return value when reading the control register.
Signed-off-by: Li Zhong <floridsleeves@gmail.com>
---
drivers/ata/libata-core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 826d41f341e4..ae08c7d35cb0 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3021,7 +3021,8 @@ static void sata_print_link_status(struct ata_link *link)
if (sata_scr_read(link, SCR_STATUS, &sstatus))
return;
- sata_scr_read(link, SCR_CONTROL, &scontrol);
+ if (sata_scr_read(link, SCR_CONTROL, &scontrol))
+ return;
if (ata_phys_link_online(link)) {
tmp = (sstatus >> 4) & 0xf;
--
2.25.1
next reply other threads:[~2022-09-03 23:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-03 23:10 Li Zhong [this message]
2022-09-16 14:21 ` Damien Le Moal
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