diff mbox

One bug of SDHCI driver

Message ID 53C4B0CA.1020504@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jaehoon Chung July 15, 2014, 4:40 a.m. UTC 
From: Chris Ball <chris@printf.net>
Subject: [PATCH] mmc: core: sdio: Fix unconditional wake_up_process() on sdio thread

781e989cf59 ("mmc: sdhci: convert to new SDIO IRQ handling") and
bf3b5ec66bd ("mmc: sdio_irq: rework sdio irq handling") disabled
the use of our own custom threaded IRQ handler, but left in an
unconditional wake_up_process() on that handler at resume-time.

Reported-by: Fu, Zhonghui <zhonghui.fu@linux.intel.com>
[Patch suggested by Jaehoon Chung]
Signed-off-by: Chris Ball <chris@printf.net>
---
 drivers/mmc/core/sdio.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index e636d9e..11cc4e0 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -992,7 +992,8 @@  static int mmc_sdio_resume(struct mmc_host *host)
 		}
 	}
 
-	if (!err && host->sdio_irqs)
+	if (!err && host->sdio_irqs &&
+			!(host->caps2 & MMC_CAP2_SDIO_IRQ_NOTHREAD))
 		wake_up_process(host->sdio_irq_thread);
 	mmc_release_host(host);