The driver forgets to free the I/O region in remove and probe failure. Add the missed calls to fix it.
Signed-off-by: Chuhong Yuan hslester96@gmail.com --- Changes in v3: - Revise the commit message. - Add an error handler to suit the "goto error" before request_region(). - Revise the order of operations in remove.
drivers/video/fbdev/vesafb.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/video/fbdev/vesafb.c b/drivers/video/fbdev/vesafb.c index a1fe24ea869b..c7bc9ace47d4 100644 --- a/drivers/video/fbdev/vesafb.c +++ b/drivers/video/fbdev/vesafb.c @@ -439,7 +439,7 @@ static int vesafb_probe(struct platform_device *dev) "vesafb: abort, cannot ioremap video memory 0x%x @ 0x%lx\n", vesafb_fix.smem_len, vesafb_fix.smem_start); err = -EIO; - goto err; + goto err_release_region; }
printk(KERN_INFO "vesafb: framebuffer at 0x%lx, mapped to 0x%p, " @@ -458,15 +458,17 @@ static int vesafb_probe(struct platform_device *dev)
if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) { err = -ENOMEM; - goto err; + goto err_release_region; } if (register_framebuffer(info)<0) { err = -EINVAL; fb_dealloc_cmap(&info->cmap); - goto err; + goto err_release_region; } fb_info(info, "%s frame buffer device\n", info->fix.id); return 0; +err_release_region: + release_region(0x3c0, 32); err: arch_phys_wc_del(par->wc_cookie); if (info->screen_base) @@ -481,6 +483,7 @@ static int vesafb_remove(struct platform_device *pdev) struct fb_info *info = platform_get_drvdata(pdev);
unregister_framebuffer(info); + release_region(0x3c0, 32); framebuffer_release(info);
return 0;