[U-Boot] [PATCH] drivers/mtd/spi/eeprom_m95xxx.c: add missing error checking

[Albin Tonnerre]

Signed-off-by: Albin Tonnerre <albin.tonnerre at free-electrons.com>
---
 drivers/mtd/spi/eeprom_m95xxx.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/mtd/spi/eeprom_m95xxx.c b/drivers/mtd/spi/eeprom_m95xxx.c
index 0148d00..632db4e 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;
-- 
1.7.0