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Fix some BBRAM return values (from David Sidrane). Also some MTD-related cosmetic changes

This commit is contained in:
Gregory Nutt 2015-03-05 08:08:11 -06:00
parent c22fe55190
commit dbca8f5549
2 changed files with 13 additions and 6 deletions
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14
nuttx/arch/arm/src/stm32/stm32_bbsram.c
View File

@ -807,9 +807,9 @@ int stm32_bbsram_savepanic(int fileno, uint8_t *context, int length)
{
FAR struct bbsramfh_s *bbf;
int fill;
int ret = -ENOMEM;
int ret = -ENOSPC;
/* on a bad day we could panic while panicking, (and we debug assert)
/* On a bad day we could panic while panicking, (and we debug assert)
* this is a potential feeble attempt at only writing the first
* panic's context to the file
*/
@ -826,13 +826,19 @@ int stm32_bbsram_savepanic(int fileno, uint8_t *context, int length)
DEBUGASSERT(bbf);
/* As once ensures we will keep the first dump checking the time for
/* If the g_bbsram has been nulled out we return ENXIO.
*
* As once ensures we will keep the first dump. Checking the time for
* 0 protects from over writing a previous crash dump that has not
* been saved to long term storage and erased. The dreaded reboot
* loop.
*/
if (bbf && (bbf->lastwrite.tv_sec == 0 && bbf->lastwrite.tv_nsec == 0))
if (!bbf)
{
ret = -ENXIO;
}
else if ((bbf->lastwrite.tv_sec == 0 && bbf->lastwrite.tv_nsec == 0))
{
/* Clamp length if too big */

5
nuttx/drivers/mtd/mtd_config.c
View File

@ -885,7 +885,7 @@ retry_relocate:
if (dst_offset + sizeof(hdr) >= (dst_block + 1) * dev->erasesize)
{
/* No room at end of dst block for another header. Go to next block. */
/* No room at end of dst block for another header. Go to next block. */
dst_block++;
dst_offset = dst_block * dev->erasesize + CONFIGDATA_BLOCK_HDR_SIZE;
@ -1271,7 +1271,8 @@ errout:
* Name: mtdconfig_ioctl
****************************************************************************/
static int mtdconfig_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
static int mtdconfig_ioctl(FAR struct file *filep, int cmd,
unsigned long arg)
{
FAR struct inode *inode = filep->f_inode;
FAR struct mtdconfig_struct_s *dev = inode->i_private;