Assume that the driver does not own the option string or its substrings and hence duplicate the option string for the video mode. Allocate the copy's memory with devm_kstrdup(), as the driver parses the option string once per probed device. Linux will automatically free the memory upon releasing the device. Done in preparation of switching the driver to struct option_iter and constifying the option string. Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx> --- drivers/video/fbdev/gbefb.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/video/fbdev/gbefb.c b/drivers/video/fbdev/gbefb.c index 000b4aa44241..6afccd4ef0a8 100644 --- a/drivers/video/fbdev/gbefb.c +++ b/drivers/video/fbdev/gbefb.c @@ -1083,7 +1083,7 @@ ATTRIBUTE_GROUPS(gbefb); * Initialization */ -static int gbefb_setup(char *options) +static int gbefb_setup(char *options, struct device *dev) { char *this_opt; @@ -1108,8 +1108,9 @@ static int gbefb_setup(char *options) gbe_mem_size = CONFIG_FB_GBE_MEM * 1024 * 1024; if (gbe_mem_size < TILE_SIZE) gbe_mem_size = TILE_SIZE; - } else - mode_option = this_opt; + } else { + mode_option = devm_kstrdup(dev, this_opt, GFP_KERNEL); // ignore errors + } } return 0; } @@ -1132,7 +1133,7 @@ static int gbefb_probe(struct platform_device *p_dev) ret = -ENODEV; goto out_release_framebuffer; } - gbefb_setup(options); + gbefb_setup(options, &p_dev->dev); #endif if (!request_mem_region(GBE_BASE, sizeof(struct sgi_gbe), "GBE")) { -- 2.39.2