diff --git a/drivers/mtd/spi/eeprom_m95xxx.c b/drivers/mtd/spi/eeprom_m95xxx.c index 0148d005e9dd5f334e24e0b1a7966d4fd9b61d8a..632db4e9e0a60c57ab94a4c54a2b2b9123cb42d0 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;