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 <cuibixuan@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/tuners/mxl5005s.c b/drivers/media/tuners/mxl5005s.c
index 1c07e2225fb39c285967903976e856a643855067..f6e82a8e7d37d9c41b74133eff3aff09e8371fdd 100644 (file)
--- 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;
 }