Need add type cast, or can not notice the failure. The related warning
(allmodconfig, "EXTRA_CFLAGS=-W"):
arch/arm/mach-omap2/gpmc.c:728:2: warning: comparison of unsigned expression
< 0 is always false [-Wtype-limits]
Signed-off-by: Chen Gang <gang.c...@asianux.com>
---
arch/arm/mach-omap2/gpmc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index f3fdd6a..62377b5 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -725,7 +725,7 @@ static int gpmc_setup_irq(void)
return -EINVAL;
gpmc_irq_start = irq_alloc_descs(-1, 0, GPMC_NR_IRQ, 0);
- if (gpmc_irq_start < 0) {
+ if ((signed)gpmc_irq_start < 0) {
pr_err("irq_alloc_descs failed\n");
return gpmc_irq_start;
}
--
1.7.7.6
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