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staging: fbtft: core: fix potential memory leak in fbtft_probe_common()

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[ Upstream commit 47d3949a9b ]

fbtft_probe_common() allocates a memory chunk for "info" with
fbtft_framebuffer_alloc(). When "display->buswidth == 0" is true, the
function returns without releasing the "info", which will lead to a
memory leak.

Fix it by calling fbtft_framebuffer_release() when "display->buswidth
== 0" is true.

Fixes: c296d5f995 ("staging: fbtft: core support")
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://patch.msgid.link/20251112192235.2088654-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jianglei Nie
2026-01-11 15:21:29 +01:00
committed by Greg Kroah-Hartman
parent d6ce96e10e
commit 3cfa3d4b15
1 changed files with 2 additions and 2 deletions
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drivers/staging/fbtft/fbtft-core.c
+2 -2
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@@ -1225,8 +1225,8 @@ int fbtft_probe_common(struct fbtft_display *display,
par->pdev = pdev;
if (display->buswidth == 0) {
dev_err(dev, "buswidth is not set\n");
return -EINVAL;
ret = dev_err_probe(dev, -EINVAL, "buswidth is not set\n");
goto out_release;
}
/* write register functions */