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-rw-r--r--drivers/mailbox/pcc.c29
-rw-r--r--include/acpi/pcc.h5
2 files changed, 9 insertions, 25 deletions
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index c9e46e2266a4..d6671c18750e 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -373,6 +373,7 @@ static irqreturn_t pcc_mbox_irq(int irq, void *p)
struct pcc_mbox_chan *
pcc_mbox_request_channel(struct mbox_client *cl, int subspace_id)
{
+ struct pcc_mbox_chan *pcc_mchan;
struct pcc_chan_info *pchan;
struct mbox_chan *chan;
int rc;
@@ -391,7 +392,14 @@ pcc_mbox_request_channel(struct mbox_client *cl, int subspace_id)
if (rc)
return ERR_PTR(rc);
- return &pchan->chan;
+ pcc_mchan = &pchan->chan;
+ pcc_mchan->shmem = acpi_os_ioremap(pcc_mchan->shmem_base_addr,
+ pcc_mchan->shmem_size);
+ if (pcc_mchan->shmem)
+ return pcc_mchan;
+
+ mbox_free_channel(chan);
+ return ERR_PTR(-ENXIO);
}
EXPORT_SYMBOL_GPL(pcc_mbox_request_channel);
@@ -420,25 +428,6 @@ void pcc_mbox_free_channel(struct pcc_mbox_chan *pchan)
}
EXPORT_SYMBOL_GPL(pcc_mbox_free_channel);
-int pcc_mbox_ioremap(struct mbox_chan *chan)
-{
- struct pcc_chan_info *pchan_info;
- struct pcc_mbox_chan *pcc_mbox_chan;
-
- if (!chan || !chan->cl)
- return -1;
- pchan_info = chan->con_priv;
- pcc_mbox_chan = &pchan_info->chan;
-
- pcc_mbox_chan->shmem = acpi_os_ioremap(pcc_mbox_chan->shmem_base_addr,
- pcc_mbox_chan->shmem_size);
- if (!pcc_mbox_chan->shmem)
- return -ENXIO;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(pcc_mbox_ioremap);
-
/**
* pcc_send_data - Called from Mailbox Controller code. Used
* here only to ring the channel doorbell. The PCC client
diff --git a/include/acpi/pcc.h b/include/acpi/pcc.h
index d1e506f041c5..840bfc95bae3 100644
--- a/include/acpi/pcc.h
+++ b/include/acpi/pcc.h
@@ -37,7 +37,6 @@ struct pcc_mbox_chan {
extern struct pcc_mbox_chan *
pcc_mbox_request_channel(struct mbox_client *cl, int subspace_id);
extern void pcc_mbox_free_channel(struct pcc_mbox_chan *chan);
-extern int pcc_mbox_ioremap(struct mbox_chan *chan);
#else
static inline struct pcc_mbox_chan *
pcc_mbox_request_channel(struct mbox_client *cl, int subspace_id)
@@ -45,10 +44,6 @@ pcc_mbox_request_channel(struct mbox_client *cl, int subspace_id)
return ERR_PTR(-ENODEV);
}
static inline void pcc_mbox_free_channel(struct pcc_mbox_chan *chan) { }
-static inline int pcc_mbox_ioremap(struct mbox_chan *chan)
-{
- return 0;
-};
#endif
#endif /* _PCC_H */