[PATCH AUTOSEL 6.8 14/15] ata: sata_gemini: Check clk_enable() result

From: Sasha Levin
Date: Mon Apr 15 2024 - 08:53:43 EST


From: Chen Ni <nichen@xxxxxxxxxxx>

[ Upstream commit e85006ae7430aef780cc4f0849692e266a102ec0 ]

The call to clk_enable() in gemini_sata_start_bridge() can fail.
Add a check to detect such failure.

Signed-off-by: Chen Ni <nichen@xxxxxxxxxxx>
Signed-off-by: Damien Le Moal <dlemoal@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/ata/sata_gemini.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/ata/sata_gemini.c b/drivers/ata/sata_gemini.c
index 400b22ee99c33..4c270999ba3cc 100644
--- a/drivers/ata/sata_gemini.c
+++ b/drivers/ata/sata_gemini.c
@@ -200,7 +200,10 @@ int gemini_sata_start_bridge(struct sata_gemini *sg, unsigned int bridge)
pclk = sg->sata0_pclk;
else
pclk = sg->sata1_pclk;
- clk_enable(pclk);
+ ret = clk_enable(pclk);
+ if (ret)
+ return ret;
+
msleep(10);

/* Do not keep clocking a bridge that is not online */
--
2.43.0