| User: | Jiri Slaby |
| Error type: | Leaving function in locked state |
| Error type description: | Some lock is not unlocked on all paths of a function, so it is leaked |
| File location: | net/ipv4/igmp.c |
| Line in file: | 2492 |
| Project: | Linux Kernel |
| Project version: | 2.6.28 |
| Tools: |
Undetermined 1
Stanse (1.2) |
| Entered: | 2012-03-04 17:07:06 UTC |
2462static struct ip_sf_list *igmp_mcf_get_next(struct seq_file *seq, struct ip_sf_list *psf) 2463{ 2464 struct igmp_mcf_iter_state *state = igmp_mcf_seq_private(seq); 2465 2466 psf = psf->sf_next; 2467 while (!psf) { 2468 spin_unlock_bh(&state->im->lock); 2469 state->im = state->im->next; 2470 while (!state->im) { 2471 if (likely(state->idev != NULL)) { 2472 read_unlock(&state->idev->mc_list_lock); 2473 in_dev_put(state->idev); 2474 } 2475 state->dev = next_net_device(state->dev); 2476 if (!state->dev) { 2477 state->idev = NULL; 2478 goto out; 2479 } 2480 state->idev = in_dev_get(state->dev); 2481 if (!state->idev) 2482 continue; 2483 read_lock(&state->idev->mc_list_lock); 2484 state->im = state->idev->mc_list; 2485 } 2486 if (!state->im) 2487 break; 2488 spin_lock_bh(&state->im->lock); 2489 psf = state->im->sources; 2490 } 2491out: 2492 return psf; 2493} 2494 2495static struct ip_sf_list *igmp_mcf_get_idx(struct seq_file *seq, loff_t pos) 2496{ 2497 struct ip_sf_list *psf = igmp_mcf_get_first(seq); 2498 if (psf) 2499 while (pos && (psf = igmp_mcf_get_next(seq, psf)) != NULL) 2500 --pos; 2501 return pos ? NULL : psf; 2502}