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viafb: make it work on x86_64

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Fix a bug in viafb on x86_64 builds (e.g. for VIA Nano CPU).

You cannot make the assumption that sizeof(unsigned int) ==
sizeof(unsigned long), so the parsing of the default mode (640x480) fails,
leading to a division by zero during insmod of the driver.

Signed-off-by: Harald Welte <[email protected]>
Cc: <[email protected]>
Cc: <[email protected]>
Cc: Acked-by: Krzysztof Helt <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Harald Welte 2009-05-12 13:19:42 -07:00 • committed by Linus Torvalds
commit ee1ef82c7e
1 changed files with 3 additions and 3 deletions
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6
drivers/video/via/viafbdev.c
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@ -2103,7 +2103,7 @@ static void viafb_remove_proc(struct proc_dir_entry *viafb_entry)
static int __devinit via_pci_probe(void)
{
unsigned int default_xres, default_yres;
unsigned long default_xres, default_yres;
char *tmpc, *tmpm;
char *tmpc_sec, *tmpm_sec;
int vmode_index;
@ -2196,8 +2196,8 @@ static int __devinit via_pci_probe(void)
viafb_FB_MM = viaparinfo->fbmem_virt;
tmpm = viafb_mode;
tmpc = strsep(&tmpm, "x");
strict_strtoul(tmpc, 0, (unsigned long *)&default_xres);
strict_strtoul(tmpm, 0, (unsigned long *)&default_yres);
strict_strtoul(tmpc, 0, &default_xres);
strict_strtoul(tmpm, 0, &default_yres);
vmode_index = viafb_get_mode_index(default_xres, default_yres, 0);
DEBUG_MSG(KERN_INFO "0->index=%d\n", vmode_index);