From: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
[ Upstream commit 66077adb70a2a9e92540155b2ace33ec98299c90 ]
platform_get_irq() returns a negative error number on error. In such a
case, comparison to 0 would pass the check therefore check the return
value properly, whether it is negative.
[ bp: Massage commit message. ]
Fixes: 86a18ee21e5e ("EDAC, ti: Add support for TI keystone and DRA7xx EDAC")
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Reviewed-by: Tero Kristo <t-kristo@xxxxxx>
Link: https://lkml.kernel.org/r/20200827070743.26628-2-krzk@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/edac/ti_edac.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/edac/ti_edac.c b/drivers/edac/ti_edac.c
index 8be3e89a510e4..d7419a90a2f5b 100644
--- a/drivers/edac/ti_edac.c
+++ b/drivers/edac/ti_edac.c
@@ -278,7 +278,8 @@ static int ti_edac_probe(struct platform_device *pdev)
/* add EMIF ECC error handler */
error_irq = platform_get_irq(pdev, 0);
- if (!error_irq) {
+ if (error_irq < 0) {
+ ret = error_irq;
edac_printk(KERN_ERR, EDAC_MOD_NAME,
"EMIF irq number not defined.\n");
goto err;
--
2.25.1
