diff options
Diffstat (limited to 'drivers/video/amifb.c')
| -rw-r--r-- | drivers/video/amifb.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/drivers/video/amifb.c b/drivers/video/amifb.c index e5d6b56d4447..5ea6596dd824 100644 --- a/drivers/video/amifb.c +++ b/drivers/video/amifb.c @@ -2224,22 +2224,23 @@ static int amifb_ioctl(struct fb_info *info, * Allocate, Clear and Align a Block of Chip Memory */ -static u_long unaligned_chipptr = 0; +static void *aligned_chipptr; static inline u_long __init chipalloc(u_long size) { - size += PAGE_SIZE-1; - if (!(unaligned_chipptr = (u_long)amiga_chip_alloc(size, - "amifb [RAM]"))) - panic("No Chip RAM for frame buffer"); - memset((void *)unaligned_chipptr, 0, size); - return PAGE_ALIGN(unaligned_chipptr); + aligned_chipptr = amiga_chip_alloc(size, "amifb [RAM]"); + if (!aligned_chipptr) { + pr_err("amifb: No Chip RAM for frame buffer"); + return 0; + } + memset(aligned_chipptr, 0, size); + return (u_long)aligned_chipptr; } static inline void chipfree(void) { - if (unaligned_chipptr) - amiga_chip_free((void *)unaligned_chipptr); + if (aligned_chipptr) + amiga_chip_free(aligned_chipptr); } @@ -2295,7 +2296,7 @@ default_chipset: defmode = amiga_vblank == 50 ? DEFMODE_PAL : DEFMODE_NTSC; if (amiga_chip_avail()-CHIPRAM_SAFETY_LIMIT > - VIDEOMEMSIZE_ECS_1M) + VIDEOMEMSIZE_ECS_2M) fb_info.fix.smem_len = VIDEOMEMSIZE_ECS_2M; else fb_info.fix.smem_len = VIDEOMEMSIZE_ECS_1M; @@ -2312,7 +2313,7 @@ default_chipset: maxfmode = TAG_FMODE_4; defmode = DEFMODE_AGA; if (amiga_chip_avail()-CHIPRAM_SAFETY_LIMIT > - VIDEOMEMSIZE_AGA_1M) + VIDEOMEMSIZE_AGA_2M) fb_info.fix.smem_len = VIDEOMEMSIZE_AGA_2M; else fb_info.fix.smem_len = VIDEOMEMSIZE_AGA_1M; @@ -2385,6 +2386,10 @@ default_chipset: DUMMYSPRITEMEMSIZE+ COPINITSIZE+ 4*COPLISTSIZE); + if (!chipptr) { + err = -ENOMEM; + goto amifb_error; + } assignchunk(videomemory, u_long, chipptr, fb_info.fix.smem_len); assignchunk(spritememory, u_long, chipptr, SPRITEMEMSIZE); |