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hwmon: (dell-smm) Fix warning on /proc/i8k creation error

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commit dbd3e6eaf3 upstream.

The removal function is called regardless of whether
/proc/i8k was created successfully or not, the later
causing a WARN() on module removal.
Fix that by only registering the removal function
if /proc/i8k was created successfully.

Tested on a Inspiron 3505.

Fixes: 039ae58503 ("hwmon: Allow to compile dell-smm-hwmon driver without /proc/i8k")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Acked-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20211112171440.59006-1-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Armin Wolf 2021-11-12 18:14:40 +01:00 committed by Greg Kroah-Hartman
parent be7c5d5810
commit 1d044701bd
1 changed files with 3 additions and 4 deletions
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7
drivers/hwmon/dell-smm-hwmon.c
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@ -623,10 +623,9 @@ static void __init i8k_init_procfs(struct device *dev)
{
struct dell_smm_data *data = dev_get_drvdata(dev);
/* Register the proc entry */
proc_create_data("i8k", 0, NULL, &i8k_proc_ops, data);
devm_add_action_or_reset(dev, i8k_exit_procfs, NULL);
/* Only register exit function if creation was successful */
if (proc_create_data("i8k", 0, NULL, &i8k_proc_ops, data))
devm_add_action_or_reset(dev, i8k_exit_procfs, NULL);
}
#else