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authorMimi Zohar <zohar@linux.vnet.ibm.com>2011-09-20 19:23:49 +0400
committerMimi Zohar <zohar@linux.vnet.ibm.com>2011-09-21 07:24:44 +0400
commitb78049831ffed65f0b4e61f69df14f3ab17922cb (patch)
tree196c37c7eeab26e5e71d4735cb4dd7a0fa9951df /include/linux/kernel.h
parent6bce98edc3365a8f780ff3944ac7992544c194fe (diff)
downloadlinux-b78049831ffed65f0b4e61f69df14f3ab17922cb.tar.xz
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.h2
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(),