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authorThomas Gleixner <[email protected]>2015-06-21 19:00:43 +0000
committerThomas Gleixner <[email protected]>2015-06-25 09:58:01 +0000
commit5c1642e4d2e475bbfb13da15c6ca16a23ba889bb (patch)
treef0d146b47857c6da121efc1a123c9b15a1ecfffd /drivers/pwm/pwm-atmel.c
parentMIPS/pci: Fix race in installing chained IRQ handler (diff)
downloadkernel-5c1642e4d2e475bbfb13da15c6ca16a23ba889bb.tar.gz
kernel-5c1642e4d2e475bbfb13da15c6ca16a23ba889bb.zip
MIPS/ralink: Fix race in installing chained IRQ handler
Fix a race where a pending interrupt could be received and the handler called before the handler's data has been setup, by converting to irq_set_chained_handler_and_data(). Search and conversion was done with coccinelle: @@ expression E1, E2, E3; @@ ( -if (irq_set_chained_handler(E1, E3) != 0) - BUG(); | -irq_set_chained_handler(E1, E3); ) -irq_set_handler_data(E1, E2); +irq_set_chained_handler_and_data(E1, E3, E2); @@ expression E1, E2, E3; @@ ( -if (irq_set_chained_handler(E1, E3) != 0) - BUG(); ... | -irq_set_chained_handler(E1, E3); ... ) -irq_set_handler_data(E1, E2); +irq_set_chained_handler_and_data(E1, E3, E2); Reported-by: Russell King <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: Julia Lawall <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Qais Yousef <[email protected]> Cc: Andrew Bresticker <[email protected]> Cc: John Crispin <[email protected]> Cc: [email protected]
Diffstat (limited to 'drivers/pwm/pwm-atmel.c')
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