From acf7287e77852cf787c45980c27bfbdca7d94b0d Mon Sep 17 00:00:00 2001 From: Shobhit Kukreti Date: Fri, 21 Jun 2019 15:13:14 +0200 Subject: [PATCH] video: fbdev: controlfb: fix warnings about comparing pointer to 0 Fix warnings aboout comparing pointer to 0 reported by coccicheck: drivers/video/fbdev/controlfb.c: WARNING comparing pointer to 0 drivers/video/fbdev/controlfb.c: WARNING comparing pointer to 0 drivers/video/fbdev/controlfb.c: WARNING comparing pointer to 0 Also while at it change return value to -ENOMEM on kzalloc() failure. Signed-off-by: Shobhit Kukreti Reviewed-by: Mathieu Malaterre [b.zolnierkie: minor fixups] Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/video/fbdev/controlfb.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/controlfb.c b/drivers/video/fbdev/controlfb.c index 7af8db28bb80..9a680ef3ffc3 100644 --- a/drivers/video/fbdev/controlfb.c +++ b/drivers/video/fbdev/controlfb.c @@ -182,7 +182,7 @@ int init_module(void) int ret = -ENXIO; dp = of_find_node_by_name(NULL, "control"); - if (dp != 0 && !control_of_init(dp)) + if (dp && !control_of_init(dp)) ret = 0; of_node_put(dp); @@ -580,7 +580,7 @@ static int __init control_init(void) control_setup(option); dp = of_find_node_by_name(NULL, "control"); - if (dp != 0 && !control_of_init(dp)) + if (dp && !control_of_init(dp)) ret = 0; of_node_put(dp); @@ -683,8 +683,8 @@ static int __init control_of_init(struct device_node *dp) return -ENXIO; } p = kzalloc(sizeof(*p), GFP_KERNEL); - if (p == 0) - return -ENXIO; + if (!p) + return -ENOMEM; control_fb = p; /* save it for cleanups */ /* Map in frame buffer and registers */ -- 2.30.2