comedi_get_default_calibration_path(): Check result of asprintf() for error.

diff --git a/lib/calib.c b/lib/calib.c
index 941557049d7d9d15256233929c61b71699e9e988..0677c63a412058433293bf7c926bbeb0724c2921 100644 (file)
--- a/lib/calib.c
+++ b/lib/calib.c
@@ -185,6 +185,7 @@ char* _comedi_get_default_calibration_path( comedi_t *dev )
        const char *temp;
        char *board_name;
        const char *driver_name;
+       int err;
 
        if(!valid_dev(dev)) return NULL;
        if( fstat( comedi_fileno( dev ), &file_stats ) < 0 )
@@ -206,10 +207,14 @@ char* _comedi_get_default_calibration_path( comedi_t *dev )
        board_name = strdup( temp );
 
        fixup_board_name( board_name );
-       asprintf( &file_path, LOCALSTATEDIR "/lib/comedi/calibrations/%s_%s_comedi%li",
+       err = asprintf( &file_path, LOCALSTATEDIR "/lib/comedi/calibrations/%s_%s_comedi%li",
                driver_name, board_name, ( unsigned long ) minor( file_stats.st_rdev ) );
 
        free( board_name );
+       if( err < 0 )
+       {
+               return NULL;
+       }
        return file_path;
 }