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authorAl Viro <viro@zeniv.linux.org.uk>2010-05-21 11:26:35 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2010-05-21 18:31:29 -0400
commit82f3952c02add60b15eea9151d4d99b6b82066c6 (patch)
tree31a30c82aaea4472df7f40d98619cb3ae8016816 /arch
parent4f0447b8184acb1d21b0fd71683d72ef2b83167b (diff)
fix handling of offsets in cris eeprom.c, get rid of fake on-stack files
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/cris/arch-v10/drivers/eeprom.c21
1 files changed, 7 insertions, 14 deletions
diff --git a/arch/cris/arch-v10/drivers/eeprom.c b/arch/cris/arch-v10/drivers/eeprom.c
index b04b22ba00d1..c3405507a3d1 100644
--- a/arch/cris/arch-v10/drivers/eeprom.c
+++ b/arch/cris/arch-v10/drivers/eeprom.c
@@ -437,10 +437,7 @@ static loff_t eeprom_lseek(struct file * file, loff_t offset, int orig)
437 437
438static int eeprom_read_buf(loff_t addr, char * buf, int count) 438static int eeprom_read_buf(loff_t addr, char * buf, int count)
439{ 439{
440 struct file f; 440 return eeprom_read(NULL, buf, count, &addr);
441
442 f.f_pos = addr;
443 return eeprom_read(&f, buf, count, &addr);
444} 441}
445 442
446 443
@@ -450,7 +447,7 @@ static int eeprom_read_buf(loff_t addr, char * buf, int count)
450static ssize_t eeprom_read(struct file * file, char * buf, size_t count, loff_t *off) 447static ssize_t eeprom_read(struct file * file, char * buf, size_t count, loff_t *off)
451{ 448{
452 int read=0; 449 int read=0;
453 unsigned long p = file->f_pos; 450 unsigned long p = *off;
454 451
455 unsigned char page; 452 unsigned char page;
456 453
@@ -495,7 +492,7 @@ static ssize_t eeprom_read(struct file * file, char * buf, size_t count, loff_t
495 492
496 if(read > 0) 493 if(read > 0)
497 { 494 {
498 file->f_pos += read; 495 *off += read;
499 } 496 }
500 497
501 mutex_unlock(&eeprom.lock); 498 mutex_unlock(&eeprom.lock);
@@ -506,11 +503,7 @@ static ssize_t eeprom_read(struct file * file, char * buf, size_t count, loff_t
506 503
507static int eeprom_write_buf(loff_t addr, const char * buf, int count) 504static int eeprom_write_buf(loff_t addr, const char * buf, int count)
508{ 505{
509 struct file f; 506 return eeprom_write(NULL, buf, count, &addr);
510
511 f.f_pos = addr;
512
513 return eeprom_write(&f, buf, count, &addr);
514} 507}
515 508
516 509
@@ -534,7 +527,7 @@ static ssize_t eeprom_write(struct file * file, const char * buf, size_t count,
534 { 527 {
535 restart = 0; 528 restart = 0;
536 written = 0; 529 written = 0;
537 p = file->f_pos; 530 p = *off;
538 531
539 532
540 while( (written < count) && (p < eeprom.size)) 533 while( (written < count) && (p < eeprom.size))
@@ -660,10 +653,10 @@ static ssize_t eeprom_write(struct file * file, const char * buf, size_t count,
660 } /* for */ 653 } /* for */
661 654
662 mutex_unlock(&eeprom.lock); 655 mutex_unlock(&eeprom.lock);
663 if (written == 0 && file->f_pos >= eeprom.size){ 656 if (written == 0 && p >= eeprom.size){
664 return -ENOSPC; 657 return -ENOSPC;
665 } 658 }
666 file->f_pos += written; 659 *off = p;
667 return written; 660 return written;
668} 661}
669 662