[D][SRU][PATCH 0/1] p54: fix crash during initialization

[Po-Hsu Lin]

BugLink: https://bugs.launchpad.net/bugs/1839693

== SRU Justification ==
User report that the p54usb driver will crash when trying to load it on
5.0 kernel for a Dell Wireless 1450 Dual-band (802.11a/b/g) USB 2.0
adapter. This was caused by commit e3554197 (p54: Use skb_peek_tail()
instead of direct head pointer accesses.)

== Fix ==
* 1645ab93 (p54: fix crash during initialization)

This patch added a check for target_skb to determine where to queue the
buffer. It can be cherry-picked into Disco.
Eoan got this patch from v5.2.1 upstream stable release update.

== Test ==
Test kernel could be found here:
https://people.canonical.com/~phlin/kernel/lp-1839693-p54usb/

This issue was reported against Bionic HWE 5.0 kernel, user confirmed
that the patched B-hwe kernel can fix this issue.

== Regression Potential ==
Low, change limited to p54usb driver, patch tested with positive test
result.


Christian Lamparter (1):
  p54: fix crash during initialization

 drivers/net/wireless/intersil/p54/txrx.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

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2.7.4