diff options
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/file.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index 9e4f2739341..be0120d9b50 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -568,9 +568,10 @@ spufs_regs_write(struct file *file, const char __user *buffer, struct spu_lscsa *lscsa = ctx->csa.lscsa; int ret; - size = min_t(ssize_t, sizeof lscsa->gprs - *pos, size); - if (size <= 0) + if (*pos >= sizeof(lscsa->gprs)) return -EFBIG; + + size = min_t(ssize_t, sizeof(lscsa->gprs) - *pos, size); *pos += size; ret = spu_acquire_saved(ctx); @@ -623,10 +624,11 @@ spufs_fpcr_write(struct file *file, const char __user * buffer, struct spu_lscsa *lscsa = ctx->csa.lscsa; int ret; - size = min_t(ssize_t, sizeof(lscsa->fpcr) - *pos, size); - if (size <= 0) + if (*pos >= sizeof(lscsa->fpcr)) return -EFBIG; + size = min_t(ssize_t, sizeof(lscsa->fpcr) - *pos, size); + ret = spu_acquire_saved(ctx); if (ret) return ret; |