RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

PR2039: Fix NULL pointer access

Browse Source 
In case rtems_bdbuf_read() returns an error status, the block device
buffer pointer will be set to NULL.  In RFS the chain node of the block
device buffer will be used for RFS purposes.  We must not do this after
an erroneous read.
This commit is contained in:
Sebastian Huber
2012-03-09 14:13:22 +01:00
parent cb648b75ff
commit f38caffa62
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
cpukit/libfs/src/rfs/rtems-rfs-buffer.c
View File

@@ -166,8 +166,6 @@ rtems_rfs_buffer_handle_request (rtems_rfs_file_system* fs,
{
rc = rtems_rfs_buffer_io_request (fs, block, read, &handle->buffer);
rtems_chain_set_off_chain (rtems_rfs_buffer_link(handle));
if (rc > 0)
{
if (rtems_rfs_trace (RTEMS_RFS_TRACE_BUFFER_HANDLE_REQUEST))
@@ -175,6 +173,8 @@ rtems_rfs_buffer_handle_request (rtems_rfs_file_system* fs,
block, read ? "read" : "get", rc, strerror (rc));
return rc;
}
rtems_chain_set_off_chain (rtems_rfs_buffer_link(handle));
}
/*