[PATCH v2 4/8] pbl: eeprom: return error from eeprom_read()
Sascha Hauer
s.hauer at pengutronix.de
Sun Feb 4 23:45:49 PST 2024
Reading from an I2C EEPROM can clearly produce errors, so return
an error code instead of void.
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
include/pbl/eeprom.h | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/include/pbl/eeprom.h b/include/pbl/eeprom.h
index df868b1a37..4d9ef22fc8 100644
--- a/include/pbl/eeprom.h
+++ b/include/pbl/eeprom.h
@@ -5,7 +5,7 @@
#include <common.h>
#include <pbl/i2c.h>
-static inline void eeprom_read(struct pbl_i2c *i2c, u16 client_addr, u32 addr, void *buf, u16 count)
+static inline int eeprom_read(struct pbl_i2c *i2c, u16 client_addr, u32 addr, void *buf, u16 count)
{
u8 msgbuf[2];
struct i2c_msg msg[] = {
@@ -27,8 +27,15 @@ static inline void eeprom_read(struct pbl_i2c *i2c, u16 client_addr, u32 addr, v
msg[0].len = i;
ret = pbl_i2c_xfer(i2c, msg, ARRAY_SIZE(msg));
- if (ret != ARRAY_SIZE(msg))
+ if (ret < 0)
+ return ret;
+
+ if (ret != ARRAY_SIZE(msg)) {
pr_err("Failed to read from eeprom@%x: %d\n", client_addr, ret);
+ return -EIO;
+ }
+
+ return 0;
}
#endif
--
2.39.2
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