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media: atomisp: don't cause a warn if probe failed

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When probe fails, it is possible that hmm_init() to not be
called. On such case, hmm_cleanup() will cause a WARN_ON().

Avoid it by adding an explicit check at hmm_cleanup() to
ensure that the hmm code was properly initialized.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2020-05-28 12:11:57 +02:00
parent a86b4936ba
commit d9ab83953f
1 changed files with 2 additions and 0 deletions
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2
drivers/staging/media/atomisp/pci/hmm/hmm.c
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@ -208,6 +208,8 @@ int hmm_init(void)
void hmm_cleanup(void) void hmm_cleanup(void)
{ {
if (!dummy_ptr)
return;
sysfs_remove_group(&atomisp_dev->kobj, atomisp_attribute_group); sysfs_remove_group(&atomisp_dev->kobj, atomisp_attribute_group);
/* free dummy memory first */ /* free dummy memory first */