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| author | Antonino A. Daplas <adaplas@gmail.com> | 2007-05-08 09:39:52 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 20:15:33 +0200 |
| commit | b1e7223f28b4ed5073d2029a3597bf514ff514f2 (patch) | |
| tree | d3b41f37e9aa57e4dc400333e9ee3f25afd9018c | |
| parent | drivers/video/sis/: remove more kernel 2.4 code (diff) | |
| download | linux-b1e7223f28b4ed5073d2029a3597bf514ff514f2.tar.xz linux-b1e7223f28b4ed5073d2029a3597bf514ff514f2.zip | |
fbdev: clean up exit patch of fb_set_var
Clean up exit patch of fb_set_var():
- consolidate all return values into a single local variable
- ensure that return values are valid error codes
- fix fb_set_var() returning success when fb_check_caps() failed
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/video/fbmem.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 354711c84aaa..08d4e11d9121 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -799,11 +799,11 @@ static int fb_check_caps(struct fb_info *info, struct fb_var_screeninfo *var, int fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var) { - int err, flags = info->flags; + int flags = info->flags; + int ret = 0; if (var->activate & FB_ACTIVATE_INV_MODE) { struct fb_videomode mode1, mode2; - int ret = 0; fb_var_to_videomode(&mode1, var); fb_var_to_videomode(&mode2, &info->var); @@ -821,7 +821,9 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var) if (!ret) fb_delete_videomode(&mode1, &info->modelist); - return ret; + + ret = (ret) ? -EINVAL : 0; + goto done; } if ((var->activate & FB_ACTIVATE_FORCE) || @@ -830,20 +832,21 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var) if (!info->fbops->fb_check_var) { *var = info->var; - return 0; + goto done; } - if ((err = info->fbops->fb_check_var(var, info))) - return err; + ret = info->fbops->fb_check_var(var, info); + + if (ret) + goto done; if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) { struct fb_videomode mode; - int err = 0; if (info->fbops->fb_get_caps) { - err = fb_check_caps(info, var, activate); + ret = fb_check_caps(info, var, activate); - if (err) + if (ret) goto done; } @@ -853,16 +856,14 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var) info->fbops->fb_set_par(info); fb_pan_display(info, &info->var); - fb_set_cmap(&info->cmap, info); - fb_var_to_videomode(&mode, &info->var); if (info->modelist.prev && info->modelist.next && !list_empty(&info->modelist)) - err = fb_add_videomode(&mode, &info->modelist); + ret = fb_add_videomode(&mode, &info->modelist); - if (!err && (flags & FBINFO_MISC_USEREVENT)) { + if (!ret && (flags & FBINFO_MISC_USEREVENT)) { struct fb_event event; int evnt = (activate & FB_ACTIVATE_ALL) ? FB_EVENT_MODE_CHANGE_ALL : @@ -876,7 +877,7 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var) } done: - return 0; + return ret; } int |