Use struct option_iter to walk over the individual options in the
driver's option string. Replaces the hand-written strsep() loop with
a clean interface. The helpers for struct option_iter handle empty
option strings and empty options transparently. The struct's _init
and _release functions duplicate and release the option string's
memory buffer as needed.
Done in preparation of constifying the option string.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
---
drivers/video/fbdev/i740fb.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/video/fbdev/i740fb.c b/drivers/video/fbdev/i740fb.c
index dd4b5c717e8e..cf45d6280f38 100644
--- a/drivers/video/fbdev/i740fb.c
+++ b/drivers/video/fbdev/i740fb.c
@@ -13,6 +13,7 @@
*/
#include <linux/aperture.h>
+#include <linux/cmdline.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@@ -1261,17 +1262,15 @@ static struct pci_driver i740fb_driver = {
};
#ifndef MODULE
-static int __init i740fb_setup(char *options)
+static int __init i740fb_setup(const char *options)
{
- char *opt;
+ struct option_iter iter;
+ const char *opt;
- if (!options || !*options)
- return 0;
+ option_iter_init(&iter, options);
- while ((opt = strsep(&options, ",")) != NULL) {
- if (!*opt)
- continue;
- else if (!strncmp(opt, "mtrr:", 5))
+ while (option_iter_next(&iter, opt)) {
+ if (!strncmp(opt, "mtrr:", 5))
mtrr = simple_strtoul(opt + 5, NULL, 0);
else {
static char mode_option_buf[256];
@@ -1286,6 +1285,8 @@ static int __init i740fb_setup(char *options)
}
}
+ option_iter_release(&iter);
+
return 0;
}
#endif
--
2.39.2
