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/i810/i810_main.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/video/fbdev/i810/i810_main.c b/drivers/video/fbdev/i810/i810_main.c
index 3b2648a2de29..952d1a69dfb9 100644
--- a/drivers/video/fbdev/i810/i810_main.c
+++ b/drivers/video/fbdev/i810/i810_main.c
@@ -29,6 +29,7 @@
*/
#include <linux/aperture.h>
+#include <linux/cmdline.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@@ -1959,14 +1960,15 @@ static void i810fb_find_init_mode(struct fb_info *info)
}
#ifndef MODULE
-static int i810fb_setup(char *options)
+static int i810fb_setup(const char *options)
{
- char *this_opt, *suffix = NULL;
+ char *suffix = NULL;
+ struct option_iter iter;
+ char *this_opt;
- if (!options || !*options)
- return 0;
+ option_iter_init(&iter, options);
- while ((this_opt = strsep(&options, ",")) != NULL) {
+ while (option_iter_next(&iter, &this_opt)) {
if (!strncmp(this_opt, "mtrr", 4))
mtrr = true;
else if (!strncmp(this_opt, "accel", 5))
@@ -2009,6 +2011,9 @@ static int i810fb_setup(char *options)
mode_option = mode_option_buf;
}
}
+
+ option_iter_release(&iter);
+
return 0;
}
#endif
--
2.39.2
