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serial: core: Make uart_parse_options take const char* argument

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The pointed string is never modified from within uart_parse_options, so
it should be marked as const in the function prototype.

Signed-off-by: Paul Cercueil <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Paul Cercueil 2017-12-28 14:07:07 +01:00 • committed by Greg Kroah-Hartman
commit 0f646b63a1
2 changed files with 4 additions and 3 deletions
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5
drivers/tty/serial/serial_core.c
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@ -1955,9 +1955,10 @@ EXPORT_SYMBOL_GPL(uart_parse_earlycon);
* eg: 115200n8r
*/
void
uart_parse_options(char *options, int *baud, int *parity, int *bits, int *flow)
uart_parse_options(const char *options, int *baud, int *parity,
int *bits, int *flow)
{
char *s = options;
const char *s = options;
*baud = simple_strtoul(s, NULL, 10);
while (*s >= '0' && *s <= '9')