Thread (5 messages) 5 messages, 4 authors, 2020-09-01
STALE2104d

[PATCH 2/2] EDAC/ti: Fix handling of platform_get_irq() error

From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2020-08-27 07:08:01
Also in: linux-arm-kernel, linux-edac, lkml
Subsystem: edac-core, edac-ti, the rest · Maintainers: Borislav Petkov, Tony Luck, Tero Kristo, Linus Torvalds

platform_get_irq() returns -ERRNO on error.  In such case comparison
to 0 would pass the check.

Fixes: 86a18ee21e5e ("EDAC, ti: Add support for TI keystone and DRA7xx EDAC")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
 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 6e52796a0b41..e7eae20f83d1 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;
-- 
2.17.1
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