bcma: use (get|put)_device when probing/removing device driver - net-next.git

path: root/net/irda/ircomm/ircomm_param.c

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author	Rafał Miłecki <rafal@milecki.pl>	2017-01-28 14:31:22 +0100
committer	Kalle Valo <kvalo@codeaurora.org>	2017-01-31 09:27:09 +0200
commit	a971df0b9d04674e325346c17de9a895425ca5e1 (patch)
tree	eda823e66ba32740c28a8ce4113b27caaa969423 /net/irda/ircomm/ircomm_param.c
parent	2a2a5d1835b6f0baa0e207426d3c79eefd32e253 (diff)

bcma: use (get|put)_device when probing/removing device driver

This allows tracking device state and e.g. makes devm work as expected. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Cc: Stable <stable@vger.kernel.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

Diffstat (limited to 'net/irda/ircomm/ircomm_param.c')

0 files changed, 0 insertions, 0 deletions

ose sorts of special cases. The existing kernel RNG already attempts to extract entropy from reliable runtime variation, but this plugin takes the idea to a logical extreme by permuting a global variable based on any variation in code execution (e.g. a different value (and permutation function) is used to permute the global based on loop count, case statement, if/then/else branching, etc). To do this, the plugin starts by inserting a local variable in every marked function. The plugin then adds logic so that the value of this variable is modified by randomly chosen operations (add, xor and rol) and random values (gcc generates separate static values for each location at compile time and also injects the stack pointer at runtime). The resulting value depends on the control flow path (e.g., loops and branches taken). Before the function returns, the plugin mixes this local variable into the latent_entropy global variable. The value of this global variable is added to the kernel entropy pool in do_one_initcall() and _do_fork(), though it does not credit any bytes of entropy to the pool; the contents of the global are just used to mix the pool. Additionally, the plugin can pre-initialize arrays with build-time random contents, so that two different kernel builds running on identical hardware will not have the same starting values. Signed-off-by: Emese Revfy <re.emese@gmail.com> [kees: expanded commit message and code comments] Signed-off-by: Kees Cook <keescook@chromium.org>

Diffstat (limited to 'tools/testing/selftests')


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