From: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Date: Sun, 14 Mar 2010 17:47:23 +0000 (+0100)
Subject: drivers/mtd/spi/eeprom_m95xxx.c: add missing error checking
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=f852a0c3bfe0b30b4816135b9a0d2aaae7e5de6a;p=u-boot.git

drivers/mtd/spi/eeprom_m95xxx.c: add missing error checking

Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
---

diff --git a/drivers/mtd/spi/eeprom_m95xxx.c b/drivers/mtd/spi/eeprom_m95xxx.c
index 0148d005e9..632db4e9e0 100644
--- a/drivers/mtd/spi/eeprom_m95xxx.c
+++ b/drivers/mtd/spi/eeprom_m95xxx.c
@@ -44,6 +44,9 @@ ssize_t spi_read (uchar *addr, int alen, uchar *buffer, int len)
 
 	slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, 1, 1000000,
 			CONFIG_DEFAULT_SPI_MODE);
+	if(!slave)
+		return 0;
+
 	spi_claim_bus(slave);
 
 	/* command */
@@ -75,6 +78,9 @@ ssize_t spi_write (uchar *addr, int alen, uchar *buffer, int len)
 
 	slave = spi_setup_slave(CONFIG_DEFAULT_SPI_BUS, 1, 1000000,
 			CONFIG_DEFAULT_SPI_MODE);
+	if (!slave)
+		return 0;
+
 	spi_claim_bus(slave);
 
 	buf[0] = SPI_EEPROM_WREN;