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mailbox: PCC: Fix return value of pcc_mbox_request_channel() 

When CONFIG_PCC is disabled, pcc_mbox_request_channel() needs to
return ERR_PTR(-ENODEV), not a NULL pointer, as the callers of
this function use IS_ERR() to check for error code.

Signed-off-by: Duc Dang <dhdang@apm.com>
Signed-off-by: Hoan Tran <hotran@apm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Hoan Tran 2016-10-14 16:20:21 -07:00 committed by Rafael J. Wysocki
parent b59c4b3dcd
commit d0679cfaf5
1 changed files with 1 additions and 1 deletions
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2
include/acpi/pcc.h
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@ -21,7 +21,7 @@ extern void pcc_mbox_free_channel(struct mbox_chan *chan);
static inline struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,
int subspace_id)
{
return NULL;
return ERR_PTR(-ENODEV);
}
static inline void pcc_mbox_free_channel(struct mbox_chan *chan) { }
#endif