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Commit 46738ab3 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration 

Pull mailbox fixes from Jassi Brar:
 "Misc fixes for BCM mailbox driver

   - Fix build warnings by making static functions used within the file.
   - Check for potential NULL before dereferencing
   - Fix link error by defining HAS_DMA dependency"

* 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  fix:mailbox:bcm-pdc-mailbox:mark symbols static where possible
  mailbox: bcm-pdc: potential NULL dereference in pdc_shutdown()
  mailbox: Add HAS_DMA Kconfig dependency to BCM_PDC_MBOX
parents 6296c412 a75e4a85

drivers/mailbox/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -127,6 +127,7 @@ config XGENE_SLIMPRO_MBOX 
config BCM_PDC_MBOX

	tristate "Broadcom PDC Mailbox"

	depends on ARM64 || COMPILE_TEST

	depends on HAS_DMA

	default ARCH_BCM_IPROC

	help

	  Mailbox implementation for the Broadcom PDC ring manager,

drivers/mailbox/bcm-pdc-mailbox.c

+6 −5
Original line number Diff line number Diff line
@@ -469,7 +469,7 @@ static const struct file_operations pdc_debugfs_stats = { 
 * this directory for a SPU.

 * @pdcs: PDC state structure

 */

void pdc_setup_debugfs(struct pdc_state *pdcs)

static void pdc_setup_debugfs(struct pdc_state *pdcs)

{

	char spu_stats_name[16];
@@ -485,7 +485,7 @@ void pdc_setup_debugfs(struct pdc_state *pdcs) 
						  &pdc_debugfs_stats);

}



void pdc_free_debugfs(void)

static void pdc_free_debugfs(void)

{

	if (debugfs_dir && simple_empty(debugfs_dir)) {

		debugfs_remove_recursive(debugfs_dir);
@@ -1191,10 +1191,11 @@ static void pdc_shutdown(struct mbox_chan *chan) 
{

	struct pdc_state *pdcs = chan->con_priv;



	if (pdcs)

	if (!pdcs)

		return;



	dev_dbg(&pdcs->pdev->dev,

		"Shutdown mailbox channel for PDC %u", pdcs->pdc_idx);



	pdc_ring_free(pdcs);

}