diff options
| -rw-r--r-- | arch/x86/boot/boot.h | 4 | ||||
| -rw-r--r-- | arch/x86/boot/video-bios.c | 2 | ||||
| -rw-r--r-- | arch/x86/boot/video-vesa.c | 2 | ||||
| -rw-r--r-- | arch/x86/boot/video.c | 2 |
4 files changed, 5 insertions, 5 deletions
diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h index 887874f..d2b5adf 100644 --- a/arch/x86/boot/boot.h +++ b/arch/x86/boot/boot.h @@ -216,9 +216,9 @@ static inline char *__get_heap(size_t s, size_t a, size_t n) #define GET_HEAP(type, n) \ ((type *)__get_heap(sizeof(type),__alignof__(type),(n))) -static inline int heap_free(void) +static inline bool heap_free(size_t n) { - return heap_end-HEAP; + return (int)(heap_end-HEAP) >= (int)n; } /* copy.S */ diff --git a/arch/x86/boot/video-bios.c b/arch/x86/boot/video-bios.c index 68e65d9..ed0672a 100644 --- a/arch/x86/boot/video-bios.c +++ b/arch/x86/boot/video-bios.c @@ -79,7 +79,7 @@ static int bios_probe(void) video_bios.modes = GET_HEAP(struct mode_info, 0); for (mode = 0x14; mode <= 0x7f; mode++) { - if (heap_free() < sizeof(struct mode_info)) + if (!heap_free(sizeof(struct mode_info))) break; if (mode_defined(VIDEO_FIRST_BIOS+mode)) diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c index 1921907..4716b9a 100644 --- a/arch/x86/boot/video-vesa.c +++ b/arch/x86/boot/video-vesa.c @@ -57,7 +57,7 @@ static int vesa_probe(void) while ((mode = rdfs16(mode_ptr)) != 0xffff) { mode_ptr += 2; - if (heap_free() < sizeof(struct mode_info)) + if (!heap_free(sizeof(struct mode_info))) break; /* Heap full, can't save mode info */ if (mode & ~0x1ff) diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c index e4ba897..ad9712f 100644 --- a/arch/x86/boot/video.c +++ b/arch/x86/boot/video.c @@ -371,7 +371,7 @@ static void save_screen(void) saved.curx = boot_params.screen_info.orig_x; saved.cury = boot_params.screen_info.orig_y; - if (heap_free() < saved.x*saved.y*sizeof(u16)+512) + if (!heap_free(saved.x*saved.y*sizeof(u16)+512)) return; /* Not enough heap to save the screen */ saved.data = GET_HEAP(u16, saved.x*saved.y); |
