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| author | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2011-09-20 11:23:49 -0400 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2011-09-20 23:24:44 -0400 |
| commit | b78049831ffed65f0b4e61f69df14f3ab17922cb (patch) | |
| tree | 196c37c7eeab26e5e71d4735cb4dd7a0fa9951df /include/linux/kernel.h | |
| parent | 6bce98edc3365a8f780ff3944ac7992544c194fe (diff) | |
| download | lwn-b78049831ffed65f0b4e61f69df14f3ab17922cb.tar.gz lwn-b78049831ffed65f0b4e61f69df14f3ab17922cb.zip | |
lib: add error checking to hex2bin
hex2bin converts a hexadecimal string to its binary representation.
The original version of hex2bin did not do any error checking. This
patch adds error checking and returns the result.
Changelog v1:
- removed unpack_hex_byte()
- changed return code from boolean to int
Changelog:
- use the new unpack_hex_byte()
- add __must_check compiler option (Andy Shevchenko's suggestion)
- change function API to return error checking result
(based on Tetsuo Handa's initial patch)
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 46ac9a50528d..8eefcf7e95eb 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -382,7 +382,7 @@ static inline char *pack_hex_byte(char *buf, u8 byte) } extern int hex_to_bin(char ch); -extern void hex2bin(u8 *dst, const char *src, size_t count); +extern int __must_check hex2bin(u8 *dst, const char *src, size_t count); /* * General tracing related utility functions - trace_printk(), |