From: Rob Rice <rob.rice@broadcom.com>
To: Jassi Brar <jassisinghbrar@gmail.com>
Cc: bcm-kernel-feedback-list@broadcom.com,
linux-kernel@vger.kernel.org,
Steve Lin <steven.lin1@broadcom.com>,
Rob Rice <rob.rice@broadcom.com>
Subject: [PATCH 03/11] mailbox: bcm-pdc: PDC driver leaves debugfs files after removal
Date: Mon, 14 Nov 2016 13:25:57 -0500 [thread overview]
Message-ID: <1479147965-29662-4-git-send-email-rob.rice@broadcom.com> (raw)
In-Reply-To: <1479147965-29662-1-git-send-email-rob.rice@broadcom.com>
From: Steve Lin <steven.lin1@broadcom.com>
Minor fix to ensure that debugfs stats pseudo-files are
removed when driver module is unloaded. Previously, the call to
debugfs_remove_recursive() was never being called since the
directory was not empty, and a seg fault would occur if another
process tried to access these leftover files.
Signed-off-by: Steve Lin <steven.lin1@broadcom.com>
Signed-off-by: Rob Rice <rob.rice@broadcom.com>
Reviewed-by: Andy Gospodarek <gospo@broadcom.com>
---
drivers/mailbox/bcm-pdc-mailbox.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/mailbox/bcm-pdc-mailbox.c b/drivers/mailbox/bcm-pdc-mailbox.c
index 3b4ebbe..c9434a7 100644
--- a/drivers/mailbox/bcm-pdc-mailbox.c
+++ b/drivers/mailbox/bcm-pdc-mailbox.c
@@ -492,10 +492,8 @@ static void pdc_setup_debugfs(struct pdc_state *pdcs)
static void pdc_free_debugfs(void)
{
- if (debugfs_dir && simple_empty(debugfs_dir)) {
- debugfs_remove_recursive(debugfs_dir);
- debugfs_dir = NULL;
- }
+ debugfs_remove_recursive(debugfs_dir);
+ debugfs_dir = NULL;
}
/**
--
2.1.0
next prev parent reply other threads:[~2016-11-14 18:32 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-14 18:25 [PATCH 00/11] Update Broadcom PDC Mailbox Driver Rob Rice
2016-11-14 18:25 ` [PATCH 01/11] mailbox: bcm-pdc: Use octal permissions rather than symbolic Rob Rice
2016-11-14 18:25 ` [PATCH 02/11] mailbox: bcm-pdc: Changes so mbox client can be removed / re-inserted Rob Rice
2016-11-14 18:25 ` Rob Rice [this message]
2016-11-14 18:25 ` [PATCH 04/11] mailbox: bcm-pdc: Convert from interrupts to poll for tx done Rob Rice
2016-11-14 18:25 ` [PATCH 05/11] mailbox: bcm-pdc: streamline rx code Rob Rice
2016-11-14 18:26 ` [PATCH 06/11] mailbox: bcm-pdc: Try to improve branch prediction Rob Rice
2016-11-14 18:26 ` [PATCH 07/11] mailbox: bcm-pdc: Convert from threaded IRQ to tasklet Rob Rice
2016-11-14 18:26 ` [PATCH 08/11] mailbox: bcm-pdc: Don't use iowrite32 to write DMA descriptors Rob Rice
2016-11-14 18:26 ` [PATCH 09/11] mailbox: bcm-pdc: Performance improvements Rob Rice
2016-11-14 18:26 ` [PATCH 10/11] mailbox: bcm-pdc: Simplify interrupt handler logic Rob Rice
2016-11-14 18:26 ` [PATCH 11/11] mailbox: bcm-pdc: Remove unnecessary void* casts Rob Rice
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