From: Yoichi Yuasa Date: Wed, 7 May 2008 14:38:15 +0000 (+0900) Subject: Fix divide by zero error in build_clear_page() and build_copy_page() X-Git-Tag: v3.12-rc1~20467^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cd9da13d6ef4f4b652a9a885d4a7c80e40fed229;p=kernel%2Fkernel-generic.git Fix divide by zero error in build_clear_page() and build_copy_page() Signed-off-by: Yoichi Yuasa Signed-off-by: Ralf Baechle --- diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c index d827d61..cab81f4 100644 --- a/arch/mips/mm/page.c +++ b/arch/mips/mm/page.c @@ -310,8 +310,8 @@ void __cpuinit build_clear_page(void) if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x()) uasm_i_lui(&buf, AT, 0xa000); - off = min(8, pref_bias_clear_store / cache_line_size) * - cache_line_size; + off = cache_line_size ? min(8, pref_bias_clear_store / cache_line_size) + * cache_line_size : 0; while (off) { build_clear_pref(&buf, -off); off -= cache_line_size; @@ -454,12 +454,14 @@ void __cpuinit build_copy_page(void) if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x()) uasm_i_lui(&buf, AT, 0xa000); - off = min(8, pref_bias_copy_load / cache_line_size) * cache_line_size; + off = cache_line_size ? min(8, pref_bias_copy_load / cache_line_size) * + cache_line_size : 0; while (off) { build_copy_load_pref(&buf, -off); off -= cache_line_size; } - off = min(8, pref_bias_copy_store / cache_line_size) * cache_line_size; + off = cache_line_size ? min(8, pref_bias_copy_load / cache_line_size) * + cache_line_size : 0; while (off) { build_copy_store_pref(&buf, -off); off -= cache_line_size;