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staging: fbtft: fix potential memory leak in fbtft_framebuffer_alloc()

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[ Upstream commit eb2cb7dab60f9be0b435ac4a674255429a36d72c ]

In the error paths after fb_info structure is successfully allocated,
the memory allocated in fb_deferred_io_init() for info->pagerefs is not
freed. Fix that by adding the cleanup function on the error path.

Fixes: c296d5f995 ("staging: fbtft: core support")
Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/20250626172412.18355-1-abdun.nihaal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Abdun Nihaal 2025-06-26 22:54:10 +05:30 • committed by Greg Kroah-Hartman
commit 83ea0c7b8d
1 changed files with 1 additions and 0 deletions
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1
drivers/staging/fbtft/fbtft-core.c
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@ -752,6 +752,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display,
return info;
release_framebuf:
fb_deferred_io_cleanup(info);
framebuffer_release(info);
alloc_fail: