From f0cf9985507c649b033affe206f94adea288a5ee Mon Sep 17 00:00:00 2001 From: Bixuan Cui Date: Thu, 16 Jul 2020 19:17:42 +0200 Subject: [PATCH] media: tuners: reduce stack usage in mxl5005s_reconfigure Fix the warning: [-Werror=-Wframe-larger-than=] drivers/media/tuners/mxl5005s.c: In function 'mxl5005s_reconfigure': drivers/media/tuners/mxl5005s.c:3953:1: warning: the frame size of 1152 bytes is larger than 1024 bytes Signed-off-by: Bixuan Cui Signed-off-by: Mauro Carvalho Chehab --- drivers/media/tuners/mxl5005s.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) diff --git a/drivers/media/tuners/mxl5005s.c b/drivers/media/tuners/mxl5005s.c index 1c07e2225fb3..f6e82a8e7d37 100644 --- a/drivers/media/tuners/mxl5005s.c +++ b/drivers/media/tuners/mxl5005s.c @@ -3926,15 +3926,26 @@ static int mxl5005s_reconfigure(struct dvb_frontend *fe, u32 mod_type, u32 bandwidth) { struct mxl5005s_state *state = fe->tuner_priv; - - u8 AddrTable[MXL5005S_REG_WRITING_TABLE_LEN_MAX]; - u8 ByteTable[MXL5005S_REG_WRITING_TABLE_LEN_MAX]; + u8 *AddrTable; + u8 *ByteTable; int TableLen; dprintk(1, "%s(type=%d, bw=%d)\n", __func__, mod_type, bandwidth); mxl5005s_reset(fe); + AddrTable = kcalloc(MXL5005S_REG_WRITING_TABLE_LEN_MAX, sizeof(u8), + GFP_KERNEL); + if (!AddrTable) + return -ENOMEM; + + ByteTable = kcalloc(MXL5005S_REG_WRITING_TABLE_LEN_MAX, sizeof(u8), + GFP_KERNEL); + if (!ByteTable) { + kfree(AddrTable); + return -ENOMEM; + } + /* Tuner initialization stage 0 */ MXL_GetMasterControl(ByteTable, MC_SYNTH_RESET); AddrTable[0] = MASTER_CONTROL_ADDR; @@ -3949,6 +3960,9 @@ static int mxl5005s_reconfigure(struct dvb_frontend *fe, u32 mod_type, mxl5005s_writeregs(fe, AddrTable, ByteTable, TableLen); + kfree(AddrTable); + kfree(ByteTable); + return 0; }