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| author | Yuanjun Gong <ruc_gongyuanjun@163.com> | 2023-07-27 20:03:18 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-23 18:52:30 +0300 |
| commit | 9fedcd07abdc7a2b5bf241191930c5c63f7f4a53 (patch) | |
| tree | 2282f8e1b569267c66df00dd7b5f918575d2a942 /drivers/video | |
| parent | 3461e6492ca28253edfcd13d176d2b9b24c0ed53 (diff) | |
| download | linux-9fedcd07abdc7a2b5bf241191930c5c63f7f4a53.tar.xz | |
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 51fbf02a0343..76b50b6c98ad 100644 --- a/drivers/video/fbdev/mmp/hw/mmp_ctrl.c +++ b/drivers/video/fbdev/mmp/hw/mmp_ctrl.c @@ -519,7 +519,9 @@ static int mmphw_probe(struct platform_device *pdev) "unable to get clk %s\n", mi->clk_name); goto failed; } - clk_prepare_enable(ctrl->clk); + ret = clk_prepare_enable(ctrl->clk); + if (ret) + goto failed; /* init global regs */ ctrl_set_default(ctrl); |