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| author | Yuanjun Gong <ruc_gongyuanjun@163.com> | 2023-07-28 01:03:18 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-30 16:31:47 +0200 |
| commit | 10e935d3ff2ae36ddadf1636825b14dfd8b89ad5 (patch) | |
| tree | 76729d15f685b7aaf3112ce2aad75bee65b6b600 /drivers/video | |
| parent | 97a2d55ead76358245b446efd87818e919196d7a (diff) | |
| download | linux-stable-10e935d3ff2ae36ddadf1636825b14dfd8b89ad5.tar.gz linux-stable-10e935d3ff2ae36ddadf1636825b14dfd8b89ad5.tar.bz2 linux-stable-10e935d3ff2ae36ddadf1636825b14dfd8b89ad5.zip | |
fbdev: mmp: fix value check in mmphw_probe()
commit 0872b2c0abc0e84ac82472959c8e14e35277549c upstream.
in mmphw_probe(), check the return value of clk_prepare_enable()
and return the error code if clk_prepare_enable() returns an
unexpected value.
Fixes: d63028c38905 ("video: mmp display controller support")
Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/fbdev/mmp/hw/mmp_ctrl.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/video/fbdev/mmp/hw/mmp_ctrl.c b/drivers/video/fbdev/mmp/hw/mmp_ctrl.c index fcdbb2df137f..2277d64310ab 100644 --- a/drivers/video/fbdev/mmp/hw/mmp_ctrl.c +++ b/drivers/video/fbdev/mmp/hw/mmp_ctrl.c @@ -523,7 +523,9 @@ static int mmphw_probe(struct platform_device *pdev) ret = -ENOENT; goto failed; } - clk_prepare_enable(ctrl->clk); + ret = clk_prepare_enable(ctrl->clk); + if (ret) + goto failed; /* init global regs */ ctrl_set_default(ctrl); |