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clkdev: fix clk_add_alias() with a NULL alias device name

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clk_add_alias() was not correctly handling the case where alias_dev_name
was NULL: rather than producing an entry with a NULL dev_id pointer,
it would produce a device name of (null).  Fix this.

Cc: <stable@vger.kernel.org>
Fixes: 2568999835 ("clkdev: add clkdev_create() helper")
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2015-10-20 11:49:44 +01:00
parent 8a603f91cc
commit 625faa6a72
1 changed files with 2 additions and 1 deletions
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3
drivers/clk/clkdev.c
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@ -333,7 +333,8 @@ int clk_add_alias(const char *alias, const char *alias_dev_name,
if (IS_ERR(r))
return PTR_ERR(r);
l = clkdev_create(r, alias, "%s", alias_dev_name);
l = clkdev_create(r, alias, alias_dev_name ? "%s" : NULL,
alias_dev_name);
clk_put(r);
return l ? 0 : -ENODEV;