Patchwork [U-Boot,v2,3/4] sf: Add debug messages on spi_flash_read_common

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Submitter Jagannadha Sutradharudu Teki
Date June 15, 2013, 4:57 p.m.
Message ID <58dd4bc1-cd60-4fce-8535-a2b9b8e0f981@CH1EHSMHS019.ehs.local>
Download mbox | patch
Permalink /patch/251629/
State Superseded
Delegated to: Jagannadha Sutradharudu Teki
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Comments

Jagannadha Sutradharudu Teki - June 15, 2013, 4:57 p.m.
- Added debug's on spi_flash_read_common()
- Added space

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
---
Changes for v2:
	- none

 drivers/mtd/spi/spi_flash.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

Patch

diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c
index 492a784..f53d001 100644
--- a/drivers/mtd/spi/spi_flash.c
+++ b/drivers/mtd/spi/spi_flash.c
@@ -254,8 +254,18 @@  int spi_flash_read_common(struct spi_flash *flash, const u8 *cmd,
 	struct spi_slave *spi = flash->spi;
 	int ret;
 
-	spi_claim_bus(spi);
+	ret = spi_claim_bus(flash->spi);
+	if (ret) {
+		debug("SF: Unable to claim SPI bus\n");
+		return ret;
+	}
+
 	ret = spi_flash_cmd_read(spi, cmd, cmd_len, data, data_len);
+	if (ret < 0) {
+		debug("SF: read cmd failed\n");
+		return ret;
+	}
+
 	spi_release_bus(spi);
 
 	return ret;