[openwrt/openwrt] bcm47xx: Fix lzma-loader compilation

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/5aeaddc0c80eea00872eb17a170d6b0c8d7e9c23

commit 5aeaddc0c80eea00872eb17a170d6b0c8d7e9c23
Author: Hauke Mehrtens <hauke at hauke-m.de>
AuthorDate: Thu Dec 4 21:33:13 2025 +0100

    bcm47xx: Fix lzma-loader compilation
    
    Fixes:
    ```
    LzmaDecode.c: In function 'RangeDecoderReverseBitTreeDecode':
    LzmaDecode.c:199:5: error: 'symbol' undeclared (first use in this function)
      199 |     symbol |= (bit << i);
          |     ^~~~~~
    LzmaDecode.c:199:5: note: each undeclared identifier is reported only once for each function it appears in
    ```
    
    Fixes: 4ffd5aa239c1 ("treewide: fix coccinelle checks")
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 target/linux/bcm47xx/image/lzma-loader/src/LzmaDecode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/target/linux/bcm47xx/image/lzma-loader/src/LzmaDecode.c b/target/linux/bcm47xx/image/lzma-loader/src/LzmaDecode.c
index a4aeda5f1f..900c7e7b49 100644
--- a/target/linux/bcm47xx/image/lzma-loader/src/LzmaDecode.c
+++ b/target/linux/bcm47xx/image/lzma-loader/src/LzmaDecode.c
@@ -185,6 +185,7 @@ int RangeDecoderReverseBitTreeDecode(CProb *probs, int numLevels, CRangeDecoder
 {
   int mi = 1;
   int i;
+  int symbol = 0;
   #ifdef _LZMA_LOC_OPT
   RC_INIT_VAR
   #endif
@@ -202,7 +203,7 @@ int RangeDecoderReverseBitTreeDecode(CProb *probs, int numLevels, CRangeDecoder
   #ifdef _LZMA_LOC_OPT
   RC_FLUSH_VAR
   #endif
-  return 0;
+  return symbol;
 }
 
 Byte LzmaLiteralDecode(CProb *probs, CRangeDecoder *rd)