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authorDavid Woodhouse <dwmw2@infradead.org>2006-05-23 10:46:39 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-05-23 13:35:32 -0400
commitb471f55427ee94d6de2b33b88a7409f8cbc6b5dc (patch)
tree24458ffccb4f9df1cef2fa65794997fc01ba37b1 /arch
parent5a4fa1639622b85d7e4422242308fc6cef7e503e (diff)
[PATCH] powerpc: check Cell SPU syscall number range _before_ using it
Signed-off-by: David Woodhouse <dwmw2@infradead.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Paul Mackerras <paulus@samba.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/cell/spu_callbacks.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/platforms/cell/spu_callbacks.c b/arch/powerpc/platforms/cell/spu_callbacks.c
index 67453147cd99..5a0f9e3beb24 100644
--- a/arch/powerpc/platforms/cell/spu_callbacks.c
+++ b/arch/powerpc/platforms/cell/spu_callbacks.c
@@ -339,13 +339,13 @@ long spu_sys_callback(struct spu_syscall_block *s)
339{ 339{
340 long (*syscall)(u64 a1, u64 a2, u64 a3, u64 a4, u64 a5, u64 a6); 340 long (*syscall)(u64 a1, u64 a2, u64 a3, u64 a4, u64 a5, u64 a6);
341 341
342 syscall = spu_syscall_table[s->nr_ret];
343
344 if (s->nr_ret >= ARRAY_SIZE(spu_syscall_table)) { 342 if (s->nr_ret >= ARRAY_SIZE(spu_syscall_table)) {
345 pr_debug("%s: invalid syscall #%ld", __FUNCTION__, s->nr_ret); 343 pr_debug("%s: invalid syscall #%ld", __FUNCTION__, s->nr_ret);
346 return -ENOSYS; 344 return -ENOSYS;
347 } 345 }
348 346
347 syscall = spu_syscall_table[s->nr_ret];
348
349#ifdef DEBUG 349#ifdef DEBUG
350 print_symbol(KERN_DEBUG "SPU-syscall %s:", (unsigned long)syscall); 350 print_symbol(KERN_DEBUG "SPU-syscall %s:", (unsigned long)syscall);
351 printk("syscall%ld(%lx, %lx, %lx, %lx, %lx, %lx)\n", 351 printk("syscall%ld(%lx, %lx, %lx, %lx, %lx, %lx)\n",