mtd/m25p80: retlen is never NULL
This is just a cleanup, it doesn't fix any bugs.
These functions all check retlen inconsistently and it generates a
warning in Smatch (http://smatch.sf.net). If retlen were ever NULL it
would cause an oops and the code has been this way since 2006 so someone
would have complained. Also I looked at other places that implemented
the mtd read and write functions and they dereference retlen without
checking.
I removed the checks.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index f90941a..83c9086 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -347,8 +347,7 @@
spi_message_add_tail(&t[1], &m);
/* Byte count starts at zero. */
- if (retlen)
- *retlen = 0;
+ *retlen = 0;
mutex_lock(&flash->lock);
@@ -394,8 +393,7 @@
dev_name(&flash->spi->dev), __func__, "to",
(u32)to, len);
- if (retlen)
- *retlen = 0;
+ *retlen = 0;
/* sanity checks */
if (!len)
@@ -466,8 +464,7 @@
spi_sync(flash->spi, &m);
- if (retlen)
- *retlen += m.actual_length - m25p_cmdsz(flash);
+ *retlen += m.actual_length - m25p_cmdsz(flash);
}
}
@@ -485,8 +482,7 @@
size_t actual;
int cmd_sz, ret;
- if (retlen)
- *retlen = 0;
+ *retlen = 0;
/* sanity checks */
if (!len)