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pinctrl: berlin: fix error return code of berlin_pinctrl_build_state()

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When krealloc() fails and pctrl->functions is NULL, no error
return code of berlin_pinctrl_build_state() is assigned.
To fix this bug, ret is assigned with -ENOMEM when pctrl->functions
is NULL.

Signed-off-by: Meng Tang <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Linus Walleij <[email protected]>
This commit is contained in:
Meng Tang authored and Linus Walleij committed 2022-03-15 02:18:57 +01:00
1 parent c0e4c71a9e
commit de845036f9
1 file changed
+2
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drivers/pinctrl/berlin/berlin.c
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@@ -233,6 +233,8 @@ static int berlin_pinctrl_build_state(struct platform_device *pdev)
pctrl->functions = krealloc(pctrl->functions,
pctrl->nfunctions * sizeof(*pctrl->functions),
GFP_KERNEL);
if (!pctrl->functions)
return -ENOMEM;
/* map functions to theirs groups */
for (i = 0; i < pctrl->desc->ngroups; i++) {