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fbdev: mmp: Fix deferred clk handling in mmphw_probe() 

[ Upstream commit b3a7a9ab65 ]

When dev_err_probe() is called, 'ret' holds the value of the previous
successful devm_request_irq() call.
'ret' should be assigned with a meaningful value before being used in
dev_err_probe().

While at it, use and return "PTR_ERR(ctrl->clk)" instead of a hard-coded
"-ENOENT" so that -EPROBE_DEFER is handled and propagated correctly.

Fixes: 81b6342056 ("fbdev: mmp: Make use of the helper function dev_err_probe()")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe JAILLET 2023-04-13 21:33:17 +02:00 committed by Greg Kroah-Hartman
parent 1bd40421cb
commit 2994b153d6
1 changed files with 1 additions and 1 deletions
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2
drivers/video/fbdev/mmp/hw/mmp_ctrl.c
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@ -514,9 +514,9 @@ static int mmphw_probe(struct platform_device *pdev)
/* get clock */
ctrl->clk = devm_clk_get(ctrl->dev, mi->clk_name);
if (IS_ERR(ctrl->clk)) {
ret = PTR_ERR(ctrl->clk);
dev_err_probe(ctrl->dev, ret,
"unable to get clk %s\n", mi->clk_name);
ret = -ENOENT;
goto failed;
}
clk_prepare_enable(ctrl->clk);