Driver mmap functions shouldn't hold lock when calling vb2_mmap(). The vb2_mmap() function has its own lock that it uses to protect the critical section. Reference: commit log for f035eb4e976ef5a059e30bc91cfd310ff030a7d3 Shuah Khan (2): media: exynos-gsc: fix lockdep warning media: s5p-mfc: fix lockdep warning drivers/media/platform/exynos-gsc/gsc-m2m.c | 5 ----- drivers/media/platform/s5p-mfc/s5p_mfc.c | 3 --- 2 files changed, 8 deletions(-) -- 2.7.4
