libavcodec/jpeglsdec.c:270: error: Null Dereference
  pointer `state` last assigned on line 268 could be null and is dereferenced at line 270, column 5.

libavcodec/jpeglsdec.c:258:1: start of procedure ff_jpegls_decode_picture()
256. }
257. 
258. int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near, int point_transform, int ilv){
     ^
259.     int i, t = 0;
260.     uint8_t *zero, *last, *cur;

libavcodec/jpeglsdec.c:259:5: 
257. 
258. int ff_jpegls_decode_picture(MJpegDecodeContext *s, int near, int point_transform, int ilv){
259.     int i, t = 0;
         ^
260.     uint8_t *zero, *last, *cur;
261.     JLSState *state;

libavcodec/jpeglsdec.c:262:5: 
260.     uint8_t *zero, *last, *cur;
261.     JLSState *state;
262.     int off = 0, stride = 1, width, shift;
         ^
263. 
264.     zero = av_mallocz(s->picture.linesize[0]);

libavcodec/jpeglsdec.c:264:5: 
262.     int off = 0, stride = 1, width, shift;
263. 
264.     zero = av_mallocz(s->picture.linesize[0]);
         ^
265.     last = zero;
266.     cur = s->picture.data[0];

libavutil/mem.c:132:1: start of procedure av_mallocz()
  130. }
  131. 
  132. void *av_mallocz(unsigned int size)
       ^
  133. {
  134.     void *ptr = av_malloc(size);

libavutil/mem.c:134:5: 
  132. void *av_mallocz(unsigned int size)
  133. {
  134.     void *ptr = av_malloc(size);
           ^
  135.     if (ptr)
  136.         memset(ptr, 0, size);

libavutil/mem.c:42:1: start of procedure av_malloc()
    40.    linker will do it automatically */
    41. 
    42. void *av_malloc(unsigned int size)
        ^
    43. {
    44.     void *ptr;

libavutil/mem.c:50:8: Taking false branch
    48. 
    49.     /* let's disallow possible ambiguous cases */
    50.     if(size > (INT_MAX-16) )
               ^
    51.         return NULL;
    52. 

libavutil/mem.c:61:5: Skipping memalign(): method has no implementation
    59.     ((char*)ptr)[-1]= diff;
    60. #elif defined (HAVE_MEMALIGN)
    61.     ptr = memalign(16,size);
            ^
    62.     /* Why 64?
    63.        Indeed, we should align it:

libavutil/mem.c:91:5: 
    89.     ptr = malloc(size);
    90. #endif
    91.     return ptr;
            ^
    92. }
    93. 

libavutil/mem.c:92:1: return from a call to av_malloc
    90. #endif
    91.     return ptr;
    92. }
        ^
    93. 
    94. void *av_realloc(void *ptr, unsigned int size)

libavutil/mem.c:135:9: Taking true branch
  133. {
  134.     void *ptr = av_malloc(size);
  135.     if (ptr)
               ^
  136.         memset(ptr, 0, size);
  137.     return ptr;

libavutil/mem.c:136:9: 
  134.     void *ptr = av_malloc(size);
  135.     if (ptr)
  136.         memset(ptr, 0, size);
               ^
  137.     return ptr;
  138. }

libavutil/mem.c:137:5: 
  135.     if (ptr)
  136.         memset(ptr, 0, size);
  137.     return ptr;
           ^
  138. }
  139. 

libavutil/mem.c:138:1: return from a call to av_mallocz
  136.         memset(ptr, 0, size);
  137.     return ptr;
  138. }
       ^
  139. 
  140. char *av_strdup(const char *s)

libavcodec/jpeglsdec.c:265:5: 
263. 
264.     zero = av_mallocz(s->picture.linesize[0]);
265.     last = zero;
         ^
266.     cur = s->picture.data[0];
267. 

libavcodec/jpeglsdec.c:266:5: 
264.     zero = av_mallocz(s->picture.linesize[0]);
265.     last = zero;
266.     cur = s->picture.data[0];
         ^
267. 
268.     state = av_mallocz(sizeof(JLSState));

libavcodec/jpeglsdec.c:268:5: 
266.     cur = s->picture.data[0];
267. 
268.     state = av_mallocz(sizeof(JLSState));
         ^
269.     /* initialize JPEG-LS state from JPEG parameters */
270.     state->near = near;

libavutil/mem.c:132:1: start of procedure av_mallocz()
  130. }
  131. 
  132. void *av_mallocz(unsigned int size)
       ^
  133. {
  134.     void *ptr = av_malloc(size);

libavutil/mem.c:134:5: 
  132. void *av_mallocz(unsigned int size)
  133. {
  134.     void *ptr = av_malloc(size);
           ^
  135.     if (ptr)
  136.         memset(ptr, 0, size);

libavutil/mem.c:42:1: start of procedure av_malloc()
    40.    linker will do it automatically */
    41. 
    42. void *av_malloc(unsigned int size)
        ^
    43. {
    44.     void *ptr;

libavutil/mem.c:50:8: Taking false branch
    48. 
    49.     /* let's disallow possible ambiguous cases */
    50.     if(size > (INT_MAX-16) )
               ^
    51.         return NULL;
    52. 

libavutil/mem.c:61:5: Skipping memalign(): method has no implementation
    59.     ((char*)ptr)[-1]= diff;
    60. #elif defined (HAVE_MEMALIGN)
    61.     ptr = memalign(16,size);
            ^
    62.     /* Why 64?
    63.        Indeed, we should align it:

libavutil/mem.c:91:5: 
    89.     ptr = malloc(size);
    90. #endif
    91.     return ptr;
            ^
    92. }
    93. 

libavutil/mem.c:92:1: return from a call to av_malloc
    90. #endif
    91.     return ptr;
    92. }
        ^
    93. 
    94. void *av_realloc(void *ptr, unsigned int size)

libavutil/mem.c:135:9: Taking false branch
  133. {
  134.     void *ptr = av_malloc(size);
  135.     if (ptr)
               ^
  136.         memset(ptr, 0, size);
  137.     return ptr;

libavutil/mem.c:137:5: 
  135.     if (ptr)
  136.         memset(ptr, 0, size);
  137.     return ptr;
           ^
  138. }
  139. 

libavutil/mem.c:138:1: return from a call to av_mallocz
  136.         memset(ptr, 0, size);
  137.     return ptr;
  138. }
       ^
  139. 
  140. char *av_strdup(const char *s)

libavcodec/jpeglsdec.c:270:5: 
268.     state = av_mallocz(sizeof(JLSState));
269.     /* initialize JPEG-LS state from JPEG parameters */
270.     state->near = near;
         ^
271.     state->bpp = (s->bits < 2) ? 2 : s->bits;
272.     state->maxval = s->maxval;
