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UPSTREAM: powercap/drivers/dtpm: Fix an IS_ERR() vs NULL check

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The powercap_register_control_type() function never returns NULL, it
returns error pointers on error so update this check.

Fixes: a20d0ef97abf ("powercap/drivers/dtpm: Add API for dynamic thermal power management")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Link: https://www.spinics.net/lists/linux-kernel-janitors/msg56987.html
Bug: 182396925
Change-Id: Ica228174817bbaa5819778ef55f56e7177e51e94
(cherry picked from commit f8f706ad75abbc65fee365853e7b24731223fd6d)
Signed-off-by: Ram Chandrasekar <quic_rkumbako@quicinc.com>
This commit is contained in:
Dan Carpenter
2021-01-06 12:03:08 +03:00
committed by Greg Kroah-Hartman
parent 2a1cd71862
commit fd2c659694
1 changed files with 2 additions and 2 deletions
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4
drivers/powercap/dtpm.c
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@@ -467,9 +467,9 @@ static int __init dtpm_init(void)
struct dtpm_descr **dtpm_descr;
pct = powercap_register_control_type(NULL, "dtpm", NULL);
if (!pct) {
if (IS_ERR(pct)) {
pr_err("Failed to register control type\n");
return -EINVAL;
return PTR_ERR(pct);
}
for_each_dtpm_table(dtpm_descr)