diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.1/0216-bcm2709_fb-refine-appropriate-behaviors-to-unsupport.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.1/0216-bcm2709_fb-refine-appropriate-behaviors-to-unsupport.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.1/0216-bcm2709_fb-refine-appropriate-behaviors-to-unsupport.patch b/target/linux/brcm2708/patches-4.1/0216-bcm2709_fb-refine-appropriate-behaviors-to-unsupport.patch new file mode 100644 index 0000000000..a699f01f22 --- /dev/null +++ b/target/linux/brcm2708/patches-4.1/0216-bcm2709_fb-refine-appropriate-behaviors-to-unsupport.patch @@ -0,0 +1,38 @@ +From 52725443dcfd674734ab36a6e61a2fccde00b98b Mon Sep 17 00:00:00 2001 +From: wuyuehang <yuehan9.wu@gmail.com> +Date: Tue, 17 Nov 2015 09:24:41 +0800 +Subject: [PATCH 216/222] bcm2709_fb: refine appropriate behaviors to + unsupported fb ioctls +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +since fbturbo introduces and use FBUNSUPPORTED ioctl on copyarea +operations for unsupported dummy ioctl which is expected to return +failure. in such scenario, bcm2709 always prompts error log. + +in order not to bother users in kernel log, we change the dev_err to +dev_dbg and return a ENOTTY other than EINVAL to let userspace handles +the return value. + +Signed-off-by: wuyuehang <yuehan9.wu@gmail.com> +Reviewed-by: popcornmix <popcornmix@gmail.com> +Reviewed-by: Phil Elwell <pelwell@users.noreply.github.com> +Reviewed-by: Noralf Trønnes <noralf@tronnes.org> +--- + drivers/video/fbdev/bcm2708_fb.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/drivers/video/fbdev/bcm2708_fb.c ++++ b/drivers/video/fbdev/bcm2708_fb.c +@@ -442,8 +442,8 @@ static int bcm2708_ioctl(struct fb_info + &dummy, sizeof(dummy)); + break; + default: +- dev_err(info->device, "Unknown ioctl 0x%x\n", cmd); +- return -EINVAL; ++ dev_dbg(info->device, "Unknown ioctl 0x%x\n", cmd); ++ return -ENOTTY; + } + + if (ret) |